Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe gi de snippets" » "nghe vi de snippets", "nghe di de snippets", "nghe ki de snippets", "nghe gia de snippets", "nghe ga de snippets", "nghe gi he 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 gi de 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 gi de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe gi de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe gi de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.