Perhaps you should try some spelling variations:
"modified geometrical optimisation algorithm" » "modified geometrical optimization algorithm", "modified geometric optimization algorithm", "modified geometrical optimization algorithms", "modified geometrical estimation algorithm", "modified geometrical estimation algorithms"
"modified objective convolution algorithms" » "modified objective evolution algorithm", "modified objective solution algorithm"

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 convolution algorithms") OR ("modified geometrical optimisation algorithm"))~.
• Removing quotes may allow a broader search: (( modified objective convolution algorithms ) or ( modified geometrical optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective convolution algorithms") or ("modified geometrical optimisation algorithm"))*.