Perhaps you should try some spelling variations:
"modified objective estimation algorithms" » "modified objective estimation algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective allocation algorithms"
"machinery using methods algorithm" » "machines using methods algorithm", "machinery nursing methods algorithm", "machinery making methods algorithm", "machinery counting methods 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 estimation algorithms") OR ("machinery using methods algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified objective estimation algorithms\") OR (\"machinery using methods algorithm\"))".
• Removing quotes may allow a broader search: (( modified objective estimation algorithms ) OR ( machinery using methods algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified objective estimation algorithms") OR ("machinery using methods algorithm"))*.