Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat dau cao snippets" » "dat dai cao snippets", "bat dau cao snippets", "dat cau cao snippets", "dat dau co snippets", "dat dau cay snippets", "dat dam 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: (((("dat dau 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: (((("dat dau cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat dau cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat dau cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.