Perhaps you should try some spelling variations:
"coder coder varying linear programming" » "coder under varying linear programming" (Expand search), "coder after varying linear programming" (Expand search), "coder co varying linear programming" (Expand search), "coder decoder varying linear programming" (Expand search), "code code varying linear programming" (Expand search), "decoder codec varying linear programming" (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 varying linear programming\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder varying linear programming ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder varying linear programming") OR ("api python python python programming"))*.