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