Perhaps you should try some spelling variations:
"coder and arduino kernel programming" » "coder and arduino level programming" (Expand search), "coder and arduino perl programming" (Expand search), "coder and arduino internet programming" (Expand search), "coder and arduino ethernet programming" (Expand search), "coder and arduino internal programming" (Expand search), "coder an arduino kernel programming" (Expand search), "coder usando arduino kernel programming" (Expand search), "code and arduino kernel programming" (Expand search), "codes and arduino kernel programming" (Expand search), "poder and arduino kernel programming" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa python python python programming" (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder and arduino kernel programming\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder and arduino kernel programming ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder and arduino kernel programming") OR ("api python python python programming"))*.