Perhaps you should try some spelling variations:
"modified objective estimation algorithm" » "modified objective optimization algorithm", "modified objective allocation algorithm"
"active learning evolution algorithm" » "active learning solution algorithm", "active learning evolutionary algorithm", "active learning convolution algorithms", "active learning convolution algorithm", "active learning emotion algorithm", "machine learning evolution 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: "((\"active learning evolution algorithm\") OR (\"modified objective estimation algorithm\"))~".
• Removing quotes may allow a broader search: (( active learning evolution algorithm ) OR ( modified objective estimation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("active learning evolution algorithm") OR ("modified objective estimation algorithm"))*.