Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam gach do snippets" » "lam sach do snippets", "nam sach do snippets", "ham sach do snippets", "lam gach duoi snippets", "lam sach dao snippets", "lam sach doi 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: (((("lam gach do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lam gach do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam gach do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam gach do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.