Perhaps you should try some spelling variations:
"modified objective optimizer algorithms" » "modified objective optimized algorithms", "modified objective optimized algorithm", "modified objective optimization algorithms", "modified objective optimal algorithms"
"modified passive solutions algorithm" » "modified passive solution algorithm", "modified passive evolution algorithm", "modified passive evolutionary algorithm", "modified positive solutions algorithm", "modified adaptive solutions 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 passive solutions algorithm") OR ("modified objective optimizer algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified passive solutions algorithm\") OR (\"modified objective optimizer algorithms\"))".
• Removing quotes may allow a broader search: (( modified passive solutions algorithm ) OR ( modified objective optimizer algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified passive solutions algorithm") OR ("modified objective optimizer algorithms"))*.