Perhaps you should try some spelling variations:
evolution algorithm » evolutionary algorithm, convolution algorithms, estimation algorithm
objective solution » objective evolutionary, objective allocation
solution algorithm » convolution algorithms, evolutionary algorithm, estimation algorithm
up evolution » _ evolution, co evolution, up solutions
modified up » modified _, modified df, modified bi1

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 objective solution algorithm ) OR ( modified up evolution algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified objective solution algorithm ) or ( modified up evolution algorithm ))*.