Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam so toc snippets" » "nam sao toc snippets", "nam bo toc snippets", "nam so hoc snippets", "nam co toc snippets", "nam ho 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: (((("nam so 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: (((("nam so toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam so toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam so toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.