Perhaps you should try some spelling variations:
"coder coder edge detection problem" » "coder coder edge selection problem" (Expand search), "coder coder edge detection program" (Expand search), "coder coder edge demarcation problem" (Expand search), "coder coder face detection problem" (Expand search), "coder coder fire detection problem" (Expand search), "coder coder change detection problem" (Expand search), "coder decoder edge detection problem" (Expand search), "code code edge detection problem" (Expand search), "decoder codec edge detection problem" (Expand search), "coder over edge detection problem" (Expand search)
"via python python python programming" » "via pythons python python programming" (Expand search), "via piton python python programming" (Expand search), "via pitons python python programming" (Expand search), "in 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 edge detection problem") OR ("via python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder edge detection problem\") OR (\"via python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder edge detection problem ) OR ( via python python python programming ))*.