Perhaps you should try some spelling variations:
"coder coder source location problem" » "coder coder resource allocation problem" (Expand search), "coder coder source localization problem" (Expand search), "coder coder resources allocation problem" (Expand search), "coder copper source location problem" (Expand search), "coder codemi source location problem" (Expand search), "coder power source location problem" (Expand search), "coder decoder source location problem" (Expand search), "code code source location problem" (Expand search), "decoder codec source location problem" (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 coder source location problem") OR ("manim python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder source location problem\") OR (\"manim python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder source location problem ) OR ( manim python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder source location problem") OR ("manim python python python programming"))*.