Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lua chuan do snippets" » "sua chua do snippets", "lua chon do snippets", "lua cua do snippets", "lua chuan dao snippets", "lua chuan co snippets", "lua chuan doan 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 chuan do 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 chuan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lua chuan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua chuan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.