Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"li zheng lua snippets" » "li cheng lu snippets", "li nhung lua snippets", "li zheng liu snippets", "lei zheng lua snippets", "li yazheng lua snippets", "li phong lua snippets", "li zheng lua 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("li zheng lua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("li zheng lua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( li zheng lua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("li zheng lua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.