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 population channel coding program" » "coder population changes coding program" (Expand search), "coder population change coding program" (Expand search), "coder modulation channel coding program" (Expand search), "border population channel coding program" (Expand search), "clover population channel coding program" (Expand search), "older population channel coding program" (Expand search), "coder population channel using program" (Expand search), "coder population channel cloning program" (Expand search), "coder population channel loading program" (Expand search), "coder population channel cooling programs" (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 population channel coding program\") OR (\"and optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( coder population channel coding program ) OR ( and optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder population channel coding program") OR ("and optimization python python programming"))*.