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)
"classes using matlab coding program" » "classes using matlab cloning program" (Expand search), "classes using matlab loading program" (Expand search), "classes using matlab cooling programs" (Expand search), "classes during matlab coding program" (Expand search), "classes using matlab modeling program" (Expand search), "classes using data coding program" (Expand search), "classes using matlab code program" (Expand search), "classes using atlas coding program" (Expand search), "classes in matlab coding program" (Expand search), "classes using maldi coding 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: "((\"classes using matlab coding program\") OR (\"and optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( classes using matlab coding program ) OR ( and optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("classes using matlab coding program") OR ("and optimization python python programming"))*.