Perhaps you should try some spelling variations:
"coder coder sparse diffusion problem" » "coder coder sparse diffusion process" (Expand search), "coder coder sucrose diffusion problem" (Expand search), "coder coder large diffusion problem" (Expand search), "coder coder state diffusion problem" (Expand search), "coder over sparse diffusion problem" (Expand search), "coder under sparse diffusion problem" (Expand search), "coder novel sparse diffusion problem" (Expand search), "coder decoder sparse diffusion problem" (Expand search), "code code sparse diffusion problem" (Expand search), "decoder codec sparse diffusion problem" (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 sparse diffusion problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder sparse diffusion problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder sparse diffusion problem") OR ("api python python python programming"))*.