Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thong tu don snippets" » "phong tuc don snippets", "thong tin don snippets", "thong ke don snippets", "thong tu dong snippets", "thong tu do snippets", "thong tu den 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: (((("thong tu don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thong tu don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thong tu don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong tu don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.