Perhaps you should try some spelling variations:
"api an python python programming" » "api an pythons python programming" (Expand search), "api an piton python programming" (Expand search), "api an pitons python programming" (Expand search), "api and python python programming" (Expand search), "api in python python programming" (Expand search), "api on python python programming" (Expand search)
"coder using arduino mega using" » "coders using arduino mega using" (Expand search), "cover using arduino mega using" (Expand search), "code using arduino mega using" (Expand search), "coder using arduino 68ga using" (Expand search), "coder using arduino fpga using" (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 using arduino mega using\") OR (\"api an python python programming\"))~".
• Removing quotes may allow a broader search: (( coder using arduino mega using ) OR ( api an python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder using arduino mega using") OR ("api an python python programming"))*.