Perhaps you should try some spelling variations:
"modified global solutions algorithm" » "modified global solution algorithm", "modified global evolution algorithm", "modified global evolutionary algorithm", "modified model solutions algorithm", "modified nodal solution algorithm"
"modified parameter approximation algorithms" » "modified parameters approximation algorithms"

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 global solutions algorithm") OR ("modified parameter approximation algorithms"))~.
• Removing quotes may allow a broader search: (( modified global solutions algorithm ) or ( modified parameter approximation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified global solutions algorithm") or ("modified parameter approximation algorithms"))*.