Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua dan cao snippets" » "cua dang cao snippets", "cua ban cao snippets", "ca dan cao snippets", "cua dan ca snippets", "cua dam cao snippets", "cua dan bao 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 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: (((("cua dan cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua dan cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua dan cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.