Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"may duy doc snippets" » "mai duy doc snippets", "may thuy doc snippets", "manh duy doc snippets", "may day doc snippets", "may duy dac snippets", "may 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: (((("may 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: (((("may duy doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( may duy doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("may duy doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.