Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuoc lu hoi snippets" » "thuoc la hoi snippets", "thuoc tu hoi snippets", "thuoc su hoi snippets", "thuoc le hoi snippets", "thuoc luat hoi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("thuoc lu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuoc lu hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuoc lu hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuoc lu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.