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