Perhaps you should try some spelling variations:
solutions algorithms » solution algorithm, evolution algorithm, convolution algorithms
one approximation » time approximation, _ approximation, rough approximations
model solutions » nodal solution, global solutions
modified model » modified male
modified one » modified male, modified near, modified orca

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified model solutions algorithms ) OR ( modified one approximation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified model solutions algorithms ) or ( modified one approximation algorithms ))*.