Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lua trang ke snippets" » "xuan trang ke snippets", "luan tranh ke snippets", "cua trung ke snippets", "lua trang de snippets", "lua trang kien snippets", "lua trang web 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 trang ke 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 trang ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lua trang ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua trang ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.