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"
"machinery using source algorithm" » "machinery using our algorithm", "machinery using search algorithm", "machines using source algorithm", "machinery using force algorithm", "machinery using morse 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 objective optimizer algorithms") OR ("machinery using source algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified objective optimizer algorithms\") OR (\"machinery using source algorithm\"))".
• Removing quotes may allow a broader search: (( modified objective optimizer algorithms ) OR ( machinery using source algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified objective optimizer algorithms") OR ("machinery using source algorithm"))*.