Perhaps you should try some spelling variations:
"and optimization python python programming" » "and optimization method python programming" (Expand search), "and optimization option python programming" (Expand search), "and optimization methods python programming" (Expand search), "and optimization pythons python programming" (Expand search), "and optimization piton python programming" (Expand search), "and optimization pitons python programming" (Expand search)
"coder estimation python code program" » "coder estimation portion code program" (Expand search), "coder estimation method code program" (Expand search), "coder animation python code program" (Expand search), "model estimation python code program" (Expand search), "power estimation python code program" (Expand search), "color estimation python code program" (Expand search), "coder estimation python code programs" (Expand search), "coder estimation python cove program" (Expand search), "coder estimation python coppe program" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder estimation python code program") OR ("and optimization python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder estimation python code program\") OR (\"and optimization python python programming\"))*".
• Removing quotes may allow a broader search: (( coder estimation python code program ) OR ( and optimization python python programming ))*.