Perhaps you should try some spelling variations:
"da doi code snippets" » "da doi cong snippets", "da doi co snippets", "da doi de snippets", "va doi code snippets", "da di code snippets", "da dot code snippets", "da doi code slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("da doi code snippets") OR ("python using a snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( da doi code snippets ) or ( python using a snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("da doi code snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.