Perhaps you should try some spelling variations:
coder functioning » models functioning (Expand search), proper functioning (Expand search), role functioning (Expand search)
functioning based » functioning case (Expand search), sanctioning based (Expand search), functioning and (Expand search)
coverage program » coverage problem (Expand search), coverage from (Expand search)
based coverage » based beverage (Expand search), based beverages (Expand search), and coverage (Expand search)
coding pitons » loading pistons (Expand search)
using coding » using coping (Expand search), using coating (Expand search), using cooking (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 functioning based coverage program ) OR ( using coding pitons python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder functioning based coverage program ) OR ( using coding pitons python programming ))*.