Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vui ngon cac snippets" » "vui nhon cac snippets", "voi ngon cac snippets", "duoi ngon cac snippets", "vui nguon cam snippets", "vui chon cac snippets", "vui ngu 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: (((("vui ngon 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: (((("vui ngon cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vui ngon cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vui ngon cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.