Perhaps you should try some spelling variations:
"modified location optimization algorithm" » "modified location optimization algorithms", "modified location optimisation algorithm", "modified location estimation algorithm", "modified allocation optimization algorithm", "modified static optimization algorithm", "modified carbon optimization algorithm"
"modified learning method algorithm" » "mobile learning method algorithm", "modified caging method algorithm", "modified learning mom algorithm", "modified learning methods algorithm", "modified graining methods algorithm", "modified learning emotion 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 location optimization algorithm\") OR (\"modified learning method algorithm\"))~".
• Removing quotes may allow a broader search: (( modified location optimization algorithm ) OR ( modified learning method algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified location optimization algorithm") OR ("modified learning method algorithm"))*.