Perhaps you should try some spelling variations:
"coder modeling using motion problem" » "cover modeling using motion problem" (Expand search), "cover modelling using motion problem" (Expand search), "order modeling using motion problem" (Expand search), "coder model using motion problem" (Expand search), "coder models using motion problem" (Expand search), "coder modeling using motion problems" (Expand search), "coder modeling using location problem" (Expand search), "coder modeling using rotation problem" (Expand search), "coder modeling using mutation problem" (Expand search), "coder modeling using mobile problem" (Expand search), "coder modeling using modis problem" (Expand search)
"python coding python python programming" » "python codigo python python programming" (Expand search), "action coding python python programming" (Expand search), "python code python python programming" (Expand search), "python codigos python python programming" (Expand search), "python using python python programming" (Expand search), "python coding pythons python programming" (Expand search), "python coding piton python programming" (Expand search), "python coding pitons 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 modeling using motion problem\") OR (\"python coding python python programming\"))~".
• Removing quotes may allow a broader search: (( coder modeling using motion problem ) OR ( python coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder modeling using motion problem") OR ("python coding python python programming"))*.