Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi su toc snippets" » "khoi su toc snippets", "ki su toc snippets", "khi cu toc snippets", "khi so toc snippets", "khi su hoc snippets", "khi su toa 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: (((("khi su 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: (((("khi su toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi su toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi su toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.