Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vung tau noi snippets" » "dung tai noi snippets", "vung dat noi snippets", "vung va noi snippets", "vung cau noi snippets", "vung dau noi snippets", "vung truc noi 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: (((("vung tau noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vung tau noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vung tau noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vung tau noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.