Perhaps you should try some spelling variations:
"coder equation _ coding problem" » "order equation _ coding problem" (Expand search), "model equation _ coding problem" (Expand search), "tozer equation _ coding problem" (Expand search), "coder equation _ coding problems" (Expand search), "coder equation _ coping problem" (Expand search), "coder equation _ loading 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 equation _ coding problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder equation _ coding problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder equation _ coding problem") OR ("api python python python programming"))*.