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"
"powder using method algorithm" » "powder using mom algorithm", "code using method algorithm", "boiler using method algorithm", "model using method algorithm", "powder nursing methods algorithm", "powder focusing method algorithm", "powder using metal algorithm"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified objective estimation algorithms\") OR (\"powder using method algorithm\"))~".
• Removing quotes may allow a broader search: (( modified objective estimation algorithms ) OR ( powder using method algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective estimation algorithms") OR ("powder using method algorithm"))*.