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