Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vay luat cac snippets" » "vay luan cac snippets", "va luat cac snippets", "quy luat cac snippets", "vay luat can snippets", "vay luat cau snippets", "vay xuat 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: (((("vay luat 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: (((("vay luat cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vay luat cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vay luat cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.