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)
"coding perceptions in coding program" » "coping perception in coding program" (Expand search), "modeling perceptions in coding program" (Expand search), "sounding perceptions in coding program" (Expand search), "coding perception in coding program" (Expand search), "coding perceptions on coding program" (Expand search), "coding perceptions and coding program" (Expand search), "coding perceptions in cloning program" (Expand search), "coding perceptions in loading program" (Expand search), "coding perceptions in cooling programs" (Expand search), "coding perceptions in decoding program" (Expand search), "coding perceptions non 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: (("coding perceptions in coding program") OR ("and optimization python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coding perceptions in coding program\") OR (\"and optimization python python programming\"))".
• Removing quotes may allow a broader search: (( coding perceptions in coding program ) OR ( and optimization python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coding perceptions in coding program") OR ("and optimization python python programming"))*.