Perhaps you should try some spelling variations:
"modified objective estimation algorithms" » "modified objective estimation algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective allocation algorithms"
"modified dorca solution algorithm" » "modified dorca evolution algorithm", "modified dorca convolution algorithms", "modified dorca evolutionary algorithm", "modified orca solution algorithm", "modified norway solution algorithm", "modified drug solution algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified dorca solution algorithm") OR ("modified objective estimation algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified dorca solution algorithm\") OR (\"modified objective estimation algorithms\"))".
• Removing quotes may allow a broader search: (( modified dorca solution algorithm ) OR ( modified objective estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified dorca solution algorithm") OR ("modified objective estimation algorithms"))*.