Perhaps you should try some spelling variations:
"modified exact convolution algorithms" » "modified exact evolution algorithm", "modified exact solution algorithm", "modified exact solution algorithms"
"modified objective optimisation algorithm" » "modified objective optimization algorithm", "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective estimation algorithm", "modified objective 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 exact convolution algorithms") OR ("modified objective optimisation algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified exact convolution algorithms\") OR (\"modified objective optimisation algorithm\"))*".
• Removing quotes may allow a broader search: (( modified exact convolution algorithms ) OR ( modified objective optimisation algorithm ))*.