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