Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi voi chu snippets" » "choi voi chu snippets", "khi voi chu snippets", "cham voi chu snippets", "chi hoi chu snippets", "chi toi chu snippets", "chi voi phu 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 voi chu 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 voi chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi voi chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi voi chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.