Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than nu doc snippets" » "than nui doc snippets", "than tu doc snippets", "thanh ngu doc snippets", "than n1 doc snippets", "than n2 doc snippets", "than n3 doc 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: (((("than nu 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: (((("than nu doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than nu doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than nu doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.