Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuu voi du snippets" » "cuu hoi du snippets", "cuu noi du snippets", "cuu vai du snippets", "cuu toi du snippets", "cuu vi du snippets", "cuu voi su 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: (((("cuu voi du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuu voi du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuu voi du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuu voi du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.