Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam tu cao snippets" » "nam thu cao snippets", "nam thuc cao snippets", "nam cu cao snippets", "nam tu cac snippets", "nam vu cao 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 tu cao 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 tu cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam tu cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam tu cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.