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