Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan em den snippets" » "phan mem den snippets", "phan kiem den snippets", "phan cam den snippets", "phan em dep snippets", "phan niem den 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 em den 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 em den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan em den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan em den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.