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