Perhaps you should try some spelling variations:
"coder coder abstract control problem" » "coder coder abstract control problems" (Expand search), "coder coder abstract control program" (Expand search), "coder code abstract control problem" (Expand search), "coder cover abstract control problem" (Expand search), "coder modern abstract control problem" (Expand search), "coder decoder abstract control problem" (Expand search), "code code abstract control problem" (Expand search), "decoder codec abstract control 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder abstract control problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder abstract control problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder abstract control problem") OR ("api python python python programming"))*.