Perhaps you should try some spelling variations:
"coder model using coding problem" » "coder model using coding problems" (Expand search), "coder model using coping problem" (Expand search), "coder model using loading problem" (Expand search), "coder model using coating problem" (Expand search), "coder model using cooking problem" (Expand search), "cover model using coding problem" (Expand search), "decoder model using coding problem" (Expand search), "copper model using coding problem" (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 model using coding problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder model using coding problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder model using coding problem") OR ("api python python python programming"))*.