Perhaps you should try some spelling variations:
"modified location optimization algorithms" » "modified location optimisation algorithm", "modified location estimation algorithms", "modified location estimation algorithm", "modified allocation optimization algorithms", "modified static optimization algorithms", "modified carbon optimization algorithms"
"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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified learning method algorithm") OR ("modified location optimization algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified learning method algorithm\") OR (\"modified location optimization algorithms\"))".
• Removing quotes may allow a broader search: (( modified learning method algorithm ) OR ( modified location optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified learning method algorithm") OR ("modified location optimization algorithms"))*.