Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"wei yang cuc snippets" » "wei tang cuc snippets", "wei fang cuc snippets", "wei wang cuc snippets", "wei tang cuoc snippets", "wei mang cua snippets", "wei hang cua 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 cuc 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 cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( wei yang cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("wei yang cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.