Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao chen den snippets" » "yao chen den snippets", "tao phien den snippets", "tao he den snippets", "tao chen wen snippets", "tao chet den snippets", "tao chen chen 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: (((("tao chen 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: (((("tao chen den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao chen den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao chen den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.