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