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 dissolution when computer program" » "copper dissolution when computer program" (Expand search), "powder dissolution when computer program" (Expand search), "co2 dissolution when computer program" (Expand search), "coder dissolution in computer program" (Expand search), "coder dissolution on computer program" (Expand search), "coder dissolution rates computer program" (Expand search), "coder dissolution en computer program" (Expand search), "coder dissolution open computer program" (Expand search), "coder dissolution arena computer program" (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 dissolution when computer program\") OR (\"and optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( coder dissolution when computer program ) OR ( and optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder dissolution when computer program") OR ("and optimization python python programming"))*.