Perhaps you should try some spelling variations:
"coder coder range diffusion problem" » "coder coder range diffusion process" (Expand search), "coder coder large diffusion problem" (Expand search), "coder coder and diffusion problem" (Expand search), "coder coder franz diffusion problem" (Expand search), "coder decoder range diffusion problem" (Expand search), "code code range diffusion problem" (Expand search), "decoder codec range diffusion problem" (Expand search), "coder border range diffusion problem" (Expand search), "coder power range diffusion problem" (Expand search), "coder cyber range 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder range diffusion problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder range diffusion problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder range diffusion problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder range diffusion problem") OR ("api python python python programming"))*.