Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"viet suu cac snippets" » "viet duc cac snippets", "viet ngu cac snippets", "viet tu cac snippets", "viet cuu cac snippets", "viet su cac snippets", "viet cuu cach 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: (((("viet suu 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: (((("viet suu cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( viet suu cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viet suu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.