Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"wei van chi snippets" » "wei tan chi snippets", "wei pan chi snippets", "wei tang chi snippets", "wei van chien snippets", "wei luan chi snippets", "wei van chat 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 van chi 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 van chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( wei van chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("wei van chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.