Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong hai toc snippets" » "cong thai toc snippets", "cong ha toc snippets", "hoang hai toc snippets", "cong hai huoc snippets", "cong hai trac snippets", "cong thac toc 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: (((("cong hai 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: (((("cong hai toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong hai toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong hai toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.