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