Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam theo cu snippets" » "nam thuoc cu snippets", "pham theo cu snippets", "kem theo cu snippets", "nam theo chu snippets", "nam theo tu snippets", "nam thao cua 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 theo cu 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 theo cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam theo cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam theo cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.