Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi su nghe snippets" » "chi suc nghe snippets", "chi xu nghe snippets", "chi so nghe snippets", "chi tu nghe snippets", "khi su nghe 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: (((("chi su nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi su nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi su nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi su nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.