Perhaps you should try some spelling variations:
"coder coder channels based problem" » "coder covert channels based problem" (Expand search), "coder color channels based problem" (Expand search), "coder power channels based problem" (Expand search), "coder coder channel based problem" (Expand search), "coder coder changes based problem" (Expand search), "coder coder channels and problem" (Expand search), "coder coder channels based problems" (Expand search), "coder coder channels based probe" (Expand search), "coder coder channels posed problem" (Expand search), "coder decoder channels based problem" (Expand search), "code code channels based problem" (Expand search), "decoder codec channels based 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.

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