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