Everyone uses search engines regularly, but sometimes when searching for specific information, you get a flood of irrelevant results. Here are some search techniques that can improve your search efficiency and help you find information quickly.

Tip 1: Exclude unwanted results

Format: keyword1 + space + minus sign + keyword2, i.e., keyword1 -keyword2

Function: Exclude results containing certain unwanted keywords

Example:

hammer -hammer phone

This example excludes results related to hammer phone, showing only results about an actual hammer.

Based on testing with Baidu, exclusion works for some keywords but not reliably for all.

Tip 2: Exact match search

Format: Wrap the keyword in double quotes, "keyword"

Function: Search only for the exact phrase in quotes — not a single character less, and no word splitting

Example:

"dalabengba"

Note: Use English double quotes.

Tip 3: Search within a specific website

Format: site:domain keyword

Function: Only search content within the specified domain

Example:

site:zhihu.com frontend

Some sites have poor built-in search; this technique can be a useful alternative.

Tip 4: Search for a specific file type

Format: filetype:format keyword

Example:

filetype:pdf JavaScript

Common file formats include doc, pdf, ppt, etc.

Tip 5: Search within page titles

Format: intitle:keyword

Function: The keyword must appear in the page title

Tip 6: Search within page content

Format: intext:keyword, allintext:keyword1 keyword2, inurl:keyword

Tip 7: Combine multiple search techniques

Example:

site:zhihu.com frontend intitle:js

Combine multiple techniques and keywords, separated by spaces.

Important Notes

All symbols used in the above search techniques must be English characters.