Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"wei van lu snippets" » "wei tan lu snippets", "wei pan lu snippets", "wei tang lu snippets", "wei van luc snippets", "wei van du snippets", "wei van le snippets", "wei van lu slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("wei van lu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( wei van lu snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("wei van lu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.