Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tap yi chen snippets" » "tap yu chen snippets", "tap yan chen snippets", "tap hui chen snippets", "tap di chen snippets", "tap ki chen snippets", "tap ii 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: (((("tap yi chen snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tap yi chen snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tap yi chen snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tap yi chen snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.