Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam thi toc snippets" » "nam thai toc snippets", "nam chi toc snippets", "nam thu toc snippets", "nam thi tac snippets", "nam thi voc snippets", "nam thi goc 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 thi 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 thi toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam thi toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam thi toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.