Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam nam du snippets" » "nam nhat du snippets", "pham nam du snippets", "nam cham du snippets", "nam nam dau snippets", "nam nam tu snippets", "nam nam da 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 nam du 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 nam du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam nam du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam nam du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.