Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham sach do snippets" » "pham sach do snippets", "nam sach do snippets", "lam sach do snippets", "ham sach dao snippets", "ham sach doi snippets", "ham sach de 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: (((("ham sach 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: (((("ham sach do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham sach do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham sach do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.