Perhaps you should try some spelling variations:
"modified objective convolution algorithms" » "modified objective evolution algorithm", "modified objective solution algorithm"
"modified time evolution algorithms" » "modified time evolution algorithm", "modified time solution algorithm", "modified time evolutionary algorithm", "modified bi1 evolution algorithms", "modified male evolution 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 objective convolution algorithms") OR ("modified time evolution algorithms"))~.
• Removing quotes may allow a broader search: (( modified objective convolution algorithms ) or ( modified time evolution algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective convolution algorithms") or ("modified time evolution algorithms"))*.