Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hau can toc snippets" » "hau dan toc snippets", "hau cac toc snippets", "hau cao toc snippets", "chau can toc snippets", "nhau can 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: (((("hau can 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: (((("hau can toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hau can toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hau can toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.