Perhaps you should try some spelling variations:
"luat cau lua snippets" » "luat dau lua snippets", "lua cau lua snippets", "luat cac lua snippets", "luat cau qua snippets", "luat cay lua snippets", "luat cau cua snippets", "luat cau lua slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("luat cau lua snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luat cau lua snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat cau lua snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat cau lua snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.