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