Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lua hau le snippets" » "lua cau le snippets", "luan han le snippets", "luat hap le snippets", "lua ha le snippets", "lua hao le snippets", "lua hai le 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 hau le 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 hau le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lua hau le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua hau le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.