Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"wei yang can snippets" » "wei tang can snippets", "wei fang can snippets", "wei wang can snippets", "wei nang can snippets", "wei yang con snippets", "wei yang danh 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: (((("wei yang can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("wei yang can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( wei yang can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("wei yang can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.