Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc suu cao snippets" » "duc suc cao snippets", "duoc sua cao snippets", "quoc suu cao snippets", "duc su cao snippets", "duc sieu cao snippets", "duc suat cao 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: (((("duc suu cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc suu cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc suu cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc suu cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.