Perhaps you should try some spelling variations:
"lua mat code snippets" » "lua rate code snippets", "lua mat co snippets", "luat dat code snippets", "luat bat code snippets"
"python using a slippers" » "python using a slippery", "python using a grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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: (((("python using a slippers") OR ("lua mat code snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( python using a slippers ) or ( lua mat code snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using a slippers") or ("lua mat code snippets"))) or ("locating bug code snippets"))*.