Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc nghe don snippets" » "hoc nghien don snippets", "khoe nghe don snippets", "hoc he don snippets", "hoc nghe dan snippets", "hoc nghe son snippets", "hoc nghe mon 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: (((("hoc nghe 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: (((("hoc nghe don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc nghe don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc nghe don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.