Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
method algorithm » mom algorithm
bi1 optimisation » _ optimisation, _ optimization, qoe optimization
modified bi1 » modified _
model using » models nursing, powder using

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: (( ((model using) OR (code using)) method algorithm ) OR ( modified bi1 optimisation algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((model using) OR (code using)) method algorithm ) or ( modified bi1 optimisation algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( ((model using) OR (code using)) method algorithm ) or ( modified bi1 optimisation algorithm ))*.