Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lua khoe moi snippets" » "luan khoa moi snippets", "suc khoe moi snippets", "lua chon moi snippets", "lua hoc moi snippets", "lua cho moi 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: (((("lua khoe moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lua khoe moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lua khoe moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua khoe moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.