Perhaps you should try some spelling variations:
"van cau duc grippers" » "van dau duc grippers", "van hau duc grippers", "van chat duc grippers", "van cao duc grippers", "van cau luc grippers", "van chu duc grippers", "van cau duc 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", "locating bug core 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: (((("python using a snippets") OR ("van cau duc grippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( python using a snippets ) or ( van cau duc grippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using a snippets") or ("van cau duc grippers"))) or ("locating bug code snippets"))*.