Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau cay toc snippets" » "dau xay toc snippets", "dau ngay toc snippets", "dau cac toc snippets", "dau cao toc snippets", "dau cay coc 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: (((("dau cay toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau cay toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau cay toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau cay toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.