Perhaps you should try some spelling variations:
"coder coder the diffusion problem" » "coder coder the diffusion process" (Expand search), "coder coder and diffusion problem" (Expand search), "coder decoder the diffusion problem" (Expand search), "code code the diffusion problem" (Expand search), "decoder codec the diffusion problem" (Expand search), "coder code the diffusion problem" (Expand search), "coder cover the diffusion problem" (Expand search), "coder poder the 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), "manim 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 the diffusion problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder the diffusion problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder the diffusion problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder the diffusion problem") OR ("api python python python programming"))*.