Perhaps you should try some spelling variations:
"manim python python python programming" » "manim pythons python python programming" (Expand search), "manim piton python python programming" (Expand search), "manim pitons python python programming" (Expand search), "monty python python python programming" (Expand search), "api python python python programming" (Expand search)
"coder coder bin packing problem" » "coder decoder bin packing problem" (Expand search), "code code bin packing problem" (Expand search), "decoder codec bin packing problem" (Expand search), "coder coder bin lacking problem" (Expand search), "coder coder bin packaging problem" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder bin packing problem") OR ("manim python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder bin packing problem\") OR (\"manim python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder bin packing problem ) OR ( manim python python python programming ))*.