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