Perhaps you should try some spelling variations:
"coder coder coherent control problems" » "coder coder current control problems" (Expand search), "coder coder coherent control program" (Expand search), "coder model coherent control problems" (Expand search), "coder under coherent control problems" (Expand search), "coder mode coherent control problems" (Expand search), "coder decoder coherent control problems" (Expand search), "code code coherent control problems" (Expand search), "decoder codec coherent control 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), "manim 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 coder coherent control problems\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder coherent control problems ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder coherent control problems") OR ("api python python python programming"))*.