Perhaps you should try some spelling variations:
"coder coder variable amplitude pam" » "coder under variable amplitude pam" (Expand search), "coder color variable amplitude pam" (Expand search), "coder mode variable amplitude pam" (Expand search), "coder coder variable amplitude phase" (Expand search), "coder coder variable amplitude space" (Expand search), "coder coder variable amplitude fase" (Expand search), "coder decoder variable amplitude pam" (Expand search), "code code variable amplitude pam" (Expand search), "decoder codec variable amplitude pam" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa 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 variable amplitude pam") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder variable amplitude pam\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder variable amplitude pam ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder variable amplitude pam") OR ("api python python python programming"))*.