Perhaps you should try some spelling variations:
"coder coder conceptual change program" » "coder coder conceptual and program" (Expand search), "coder model conceptual change program" (Expand search), "coder lower conceptual change program" (Expand search), "coder mode conceptual change program" (Expand search), "coder coder conceptual exchange program" (Expand search), "coder coder conceptual exchange programs" (Expand search), "coder decoder conceptual change program" (Expand search), "code code conceptual change program" (Expand search), "decoder codec conceptual change program" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa python python 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 coder conceptual change program\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder conceptual change program ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder conceptual change program") OR ("api python python python programming"))*.