Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam hoi hoac snippets" » "nam hoi hoc snippets", "nam doi hoac snippets", "nam hoi hoa snippets", "nam khoa hoac 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 hoi hoac 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 hoi hoac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam hoi hoac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam hoi hoac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.