Perhaps you should try some spelling variations:
"coder functions and teaching programming" » "coder functions and teaching program" (Expand search), "power functions and teaching programming" (Expand search), "order functions and teaching programming" (Expand search), "colour functions and teaching programming" (Expand search), "coder function and teaching programming" (Expand search), "coder functional and teaching programming" (Expand search)
"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)

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 functions and teaching programming\") OR (\"and optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( coder functions and teaching programming ) OR ( and optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder functions and teaching programming") OR ("and optimization python python programming"))*.