Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lua gian mot snippets" » "luan giai mot snippets", "luat giao mot snippets", "cua giang mot snippets", "lua gian o snippets", "lua gian co snippets", "lua gian dat 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 gian mot 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 gian mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lua gian mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua gian mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.