Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"diem nam cac snippets" » "diem lam cac snippets", "dinh nam cac snippets", "diem cau cac snippets", "diem nam cao snippets", "diem nam sach 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: (((("diem nam cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("diem nam cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( diem nam cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("diem nam cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.