Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe tu hoi snippets" » "nghe thu hoi snippets", "nghe xu hoi snippets", "nghi tu hoi snippets", "nghe tu choi snippets", "nghe tu hoai 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: (((("nghe tu 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: (((("nghe tu hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe tu hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe tu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.