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