Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe chan he snippets" » "nghe nhan he snippets", "nghe phan he snippets", "nghiep chan he snippets", "nghe chuan he snippets", "nghe chan theo snippets", "nghe chan hai 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 chan he 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 chan he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe chan he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe chan he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.