Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam noi doan snippets" » "nam voi doanh snippets", "nam doi doanh snippets", "nam ngo doan snippets", "nam hoi doan snippets", "nam doi doan snippets", "nam nhin doan 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: (((("nam noi doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam noi doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam noi doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam noi doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.