Perhaps you should try some spelling variations:
construction algorithms » convolution algorithms
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
passive construction » adaptive construction, discursive construction
risk optimisation » _ optimisation, risk estimation
modified passive » modified adaptive
modified risk » 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 passive construction algorithms ) OR ( modified risk optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified passive construction algorithms ) or ( modified risk optimisation algorithm ))*.