Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao xu cac snippets" » "chao xu cac snippets", "cao su cac snippets", "cap xu cac snippets", "cao tu cac snippets", "cao xu bac snippets", "cao eu cac 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: (((("cao xu 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: (((("cao xu cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao xu cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao xu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.