Perhaps you should try some spelling variations:
"coder coder activity detection problem" » "coder coder activity prediction problem" (Expand search), "coder coder activity relation problem" (Expand search), "coder coder conductivity detection problem" (Expand search), "coder coder activity selection problem" (Expand search), "coder coder activity detection program" (Expand search), "coder coder activity demarcation problem" (Expand search), "coder odor activity detection problem" (Expand search), "coder cancer activity detection problem" (Expand search), "coder modelo activity detection problem" (Expand search), "coder decoder activity detection problem" (Expand search), "code code activity detection problem" (Expand search), "decoder codec activity detection 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 activity detection problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder activity detection problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder activity detection problem") OR ("api python python python programming"))*.