Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi nghe cao snippets" » "noi nghe cao snippets", "voi nghe cao snippets", "gioi nghe cao snippets", "doi nghe co snippets", "doi nghe nano snippets", "doi nghe chan 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: (((("doi nghe cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi nghe cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi nghe cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi nghe cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.