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 coding ion channels" » "coder modern coding ion channels" (Expand search), "coder color coding ion channels" (Expand search), "coder odor coding ion channels" (Expand search), "coder decoder coding ion channels" (Expand search), "code code coding ion channels" (Expand search), "decoder codec coding ion channels" (Expand search), "coder coder coding in channels" (Expand search), "coder coder coding on channels" (Expand search), "coder coder encoding ion channels" (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 coding ion channels\") OR (\"manim python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder coding ion channels ) OR ( manim python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder coding ion channels") OR ("manim python python python programming"))*.