Simply type a keyword to find questions containing that term:
This will find all questions that include the word "education" anywhere in the text.
Add the # symbol before a word to find exact word matches only:
This will find questions with the exact word "Tamil" but not words like "Tamilnadu" or "Tamilian".
Add the & symbol before terms that must be included in the results:
This will only show questions that contain BOTH "education" AND "primary".
You can combine these operators in a single search for more powerful filtering:
Finds questions that mention both "Tamil" and "Nadu"
Finds questions about primary education (not just any education that mentions "primary")
Finds questions that must contain "Amma" and "Scheme" and may contain "women"