Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan bai vo snippets" » "phan ba vo snippets", "phan dai vo snippets", "phan bac vo snippets", "phan bai mo snippets", "phan bai so 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: (((("phan bai vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan bai vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan bai vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan bai vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.