Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mon duy doc snippets" » "cong duy doc snippets", "manh duy doc snippets", "mon day doc snippets", "mon duy dac snippets", "mon duy dot 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: (((("mon duy doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mon duy doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mon duy doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mon duy doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.