Perhaps you should try some spelling variations:
"coder coding _ diffuse problem" » "coder coding _ diffusion problem" (Expand search), "coder coding _ diffusion problems" (Expand search), "coder coding _ difficult problem" (Expand search), "modern coding _ diffuse problem" (Expand search), "color coding _ diffuse problem" (Expand search), "odor coding _ diffuse 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 coding _ diffuse problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coding _ diffuse problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coding _ diffuse problem") OR ("api python python python programming"))*.