Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua dan dot snippets" » "cua dang dot snippets", "cua ban dot snippets", "ca dan dot snippets", "cua dan dat snippets", "cua da dot snippets", "cua dan dong 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: (((("cua dan dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua dan dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua dan dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua dan dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.