---
title: Advanced Search Syntax
description: Beyond basic keyword search, Essal Office supports a query syntax that gives you precise control over what you're searching for and where. You can res...
---

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# Advanced Search Syntax

Beyond basic keyword search, Essal Office supports a query syntax that gives you precise control over what you're searching for and where. You can restrict which field to search, combine conditions with logical operators, and use wildcards.

---

## Field-Specific Search

To search within a specific field, prefix your term with the field name followed by a colon:

- **Syntax**: \`title:invoice\`
- **Searches**: Documents whose \*\*title\*\* contains "invoice"

- **Syntax**: \`content:receipt\`
- **Searches**: Documents whose \*\*OCR content\*\* contains "receipt"

- **Syntax**: \`correspondent:acme\`
- **Searches**: Documents whose correspondent contains "acme"

- **Syntax**: \`tag:finance\`
- **Searches**: Documents tagged with "finance"

---

## Logical Operators

Combine search terms with operators to build more precise queries:

- **Operator**: \*\*AND\*\*
- **Syntax**: \`invoice AND acme\`
- **Meaning**: Both words must be present

- **Operator**: \*\*OR\*\*
- **Syntax**: \`invoice OR receipt\`
- **Meaning**: Either word may be present

- **Operator**: \*\*NOT\*\*
- **Syntax**: \`invoice NOT paid\`
- **Meaning**: Contains "invoice" but not "paid"

- **Operator**: \*\*Exact phrase\*\*
- **Syntax**: \`"acme supplies"\`
- **Meaning**: The exact phrase must appear, in that order

Operators are case-sensitive — write them in uppercase: `AND`, `OR`, `NOT`.

---

## Grouping with Parentheses

Use parentheses to group conditions:

`(invoice OR receipt) AND acme`

This returns documents that contain "acme" and also contain either "invoice" or "receipt".

---

## Wildcards

Use `*` to match any number of characters within a word:

- **Syntax**: \`invoice\*\`
- **Matches**: invoice, invoices, invoiced

- **Syntax**: \`supp\*\`
- **Matches**: supplier, supplies, support

Wildcards are useful when you're unsure of the exact word form or when OCR may have introduced a character error.

---

## Date Range Searches

To find documents by date within search:

- **Syntax**: \`created:\[2026-01-01 TO 2026-03-31\]\`
- **Meaning**: Created date between January and March 2026

- **Syntax**: \`created:\[\* TO 2025-12-31\]\`
- **Meaning**: Created before end of 2025

- **Syntax**: \`created:\[2026-01-01 TO \*\]\`
- **Meaning**: Created from 2026 onwards

For simpler date filtering, the filter panel (without typing syntax) achieves the same result and is easier to use.

---

## Combining Syntax with Filters

Advanced search syntax and the visual filter panel work together. You can type a complex query in the search bar and simultaneously use the filter panel to restrict by correspondent, document type, or tags.

---

## Common Syntax Examples

- **Goal**: All contracts with "renewal" in the content
- **Query**: \`title:contract AND content:renewal\`

- **Goal**: Invoices from Acme not yet marked paid
- **Query**: \`correspondent:acme AND tag:invoice NOT tag:paid\`

- **Goal**: Find a specific reference number
- **Query**: \`"REF-2026-0042"\`

- **Goal**: Documents mentioning a specific person
- **Query**: \`content:"John Smith"\`

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