Perhaps you should try some spelling variations:
"coder coder knowledge diffusion function" » "coder coder knowledge diffusion reaction" (Expand search), "coder coder knowledge diffusion convection" (Expand search), "coder coder knowledge diffusion fractional" (Expand search), "coder code knowledge diffusion function" (Expand search), "coder modern knowledge diffusion function" (Expand search), "coder power knowledge diffusion function" (Expand search), "coder decoder knowledge diffusion function" (Expand search), "code code knowledge diffusion function" (Expand search), "decoder codec knowledge diffusion function" (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 knowledge diffusion function\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder knowledge diffusion function ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder knowledge diffusion function") OR ("api python python python programming"))*.