Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang cai ve snippets" » "nang cao ve snippets", "nang tai ve snippets", "nang cap ve snippets", "nang ca ve snippets", "nang cai va snippets", "nang can ve 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: (((("nang cai ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang cai ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang cai ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang cai ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.