Perhaps you should try some spelling variations:
"coder precoder chains linear programming" » "coder decoder chains linear programming" (Expand search), "coder precoder chain linear programming" (Expand search), "coder precoder channel linear programming" (Expand search), "coder precoder chains life programming" (Expand search)
"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)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder precoder chains linear programming") OR ("manim python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder chains linear programming\") OR (\"manim python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder chains linear programming ) OR ( manim python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder chains linear programming") OR ("manim python python python programming"))*.