Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam trong de snippets" » "nam trung de snippets", "cay trong de snippets", "nam trong den snippets", "nam trong le snippets", "nam trong he 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 trong de 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 trong de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam trong de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam trong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.