Perhaps you should try some spelling variations:
"coder scheduling optimization and programming" » "order scheduling optimization and programming" (Expand search), "power scheduling optimization and programming" (Expand search), "model scheduling optimization and programming" (Expand search), "coder scheduling optimization _ programming" (Expand search), "coder scheduling optimization goal 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.

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