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