Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc hoa du snippets" » "hoc hoa du snippets", "toc hoc du snippets", "toc ha du snippets", "toc hoa dau snippets", "toc hoa lu snippets", "toc hoa su 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: (((("toc hoa du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc hoa du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc hoa du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc hoa du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.