Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan tu hoai snippets" » "doan thu hoai snippets", "dan tu hoai snippets", "toan tu hoai snippets", "doan tu hoa snippets", "doan thi hoai 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: (((("doan tu hoai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan tu hoai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan tu hoai snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan tu hoai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.