Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lua khong co snippets" » "cua khong co snippets", "hua khong co snippets", "la khong co snippets", "lua thong co snippets", "lua khong lo snippets", "lua khong bao 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 khong co 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 khong co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lua khong co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua khong co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.