Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam cham cao snippets" » "nang cham cao snippets", "nam chi cao snippets", "nam cao cao snippets", "nam cham vao snippets", "nam chat cao snippets", "nam chay 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 cham 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 cham cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam cham cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam cham cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.