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