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 occlusion case coding program" » "under occlusion case coding program" (Expand search), "bowel occlusion case coding program" (Expand search), "molar occlusion case coding program" (Expand search), "coder occlusion and coding program" (Expand search), "coder occlusion test coding program" (Expand search), "coder occlusion case cloning program" (Expand search), "coder occlusion case loading program" (Expand search), "coder occlusion case cooling programs" (Expand search), "coder occlusion clause coding program" (Expand search), "coder occlusion based coding program" (Expand search), "coder occlusion rate coding 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 occlusion case coding program") OR ("and optimization python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder occlusion case coding program\") OR (\"and optimization python python programming\"))*".
• Removing quotes may allow a broader search: (( coder occlusion case coding program ) OR ( and optimization python python programming ))*.