Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan duc te snippets" » "pham duc te snippets", "phan tu te snippets", "phan dau te snippets", "phan duc tre snippets", "phan duc tu snippets", "phan duc tien 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 duc te 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 duc te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan duc te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan duc te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.