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