Perhaps you should try some spelling variations:
"coder xcode and microcontroller system" » "coder xcode and microcontrollers system" (Expand search), "coder xcode and microcontrolled system" (Expand search), "coder xcode and microcontrolled systems" (Expand search), "coder xcode arm microcontroller system" (Expand search), "coder xcode avr microcontroller system" (Expand search), "coder xcode board microcontroller system" (Expand search), "code code and microcontroller system" (Expand search), "coder decoder and microcontroller system" (Expand search), "coder code and microcontroller system" (Expand search), "coder decode and microcontroller system" (Expand search), "coder encode and microcontroller system" (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 xcode and microcontroller system\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder xcode and microcontroller system ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder xcode and microcontroller system") OR ("api python python python programming"))*.