Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vuc phan cac snippets" » "duc phan cac snippets", "thuc phan cac snippets", "hoc phan cac snippets", "vuc nhan cach snippets", "vuc phan dau snippets", "vuc phan lap 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: (((("vuc phan 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: (((("vuc phan cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vuc phan cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vuc phan cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.