Perhaps you should try some spelling variations:
"modified objective convolution algorithms" » "modified objective evolution algorithm", "modified objective solution algorithm"
"modified nacl estimation algorithms" » "modified nacl estimation algorithm", "modified nacl optimization algorithms", "modified nacl optimisation algorithm", "modified male estimation algorithms", "modified near estimation algorithms", "modified orca estimation algorithms"

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

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