Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"co doi de snippets" » "co doi code snippets", "cho doi de snippets", "co dot de snippets", "co dai de snippets", "co doi deu snippets", "co moi de snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("co doi de snippets") OR ("python missing data snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( co doi de snippets ) or ( python missing data snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("co doi de snippets") or ("python missing data snippets"))) or ("locating bug core snippets"))*.