Perhaps you should try some spelling variations:
testing algorithm » hastings algorithm (Expand search), routing algorithm (Expand search), learning algorithm (Expand search)
optimization by » optimization _ (Expand search), optimization and (Expand search), optimization based (Expand search)
model testing » model fitting (Expand search), soil testing (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: "(( model testing algorithm optimization by ) OR ( using coding _ python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( model testing algorithm optimization by ) OR ( using coding _ python programming ))*.