Perhaps you should try some spelling variations:
"coder coder variable unit problem" » "coder under variable unit problem" (Expand search), "coder color variable unit problem" (Expand search), "coder mode variable unit problem" (Expand search), "coder coder variable units problem" (Expand search), "coder coder variables united problem" (Expand search), "coder coder variable cubic problem" (Expand search), "coder decoder variable unit problem" (Expand search), "code code variable unit problem" (Expand search), "decoder codec variable unit problem" (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 unit problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder variable unit problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder variable unit problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder variable unit problem") OR ("api python python python programming"))*.