Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"co cua dan snippets" » "co cua dang snippets", "co cua ban snippets", "co ca dan snippets", "con cua dan snippets", "ca cua dan snippets", "cong cua dan snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("co cua dan snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("co cua dan snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))*.
• Removing quotes may allow a broader search: (((( co cua dan snippets ) or ( python using data snippets ))) or ( locating bug core snippets ))*.