Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe can chi snippets" » "nghe chan chi snippets", "nghe dan chi snippets", "nghe san chi snippets", "nghe can thi snippets", "nghe van chi 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 can chi 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 can chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe can chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe can chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.