Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than tu doc snippets" » "thanh tu doc snippets", "thang tu doc snippets", "phan tu doc snippets", "than tu duoc snippets", "than tu hoc snippets", "than tu do 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 tu 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 tu doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than tu doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than tu doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.