Perhaps you should try some spelling variations:
"modified optimal convolution algorithms" » "modified optimal evolution algorithm", "modified optimal solution algorithm", "modified optimal solution algorithms", "modified thermal convolution algorithms"
"modified objective allocation algorithm" » "modified objective estimation algorithm", "modified objective evolution algorithm", "modified objective predation algorithm"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified objective allocation algorithm\") OR (\"modified optimal convolution algorithms\"))~".
• Removing quotes may allow a broader search: (( modified objective allocation algorithm ) OR ( modified optimal convolution algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective allocation algorithm") OR ("modified optimal convolution algorithms"))*.