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