Perhaps you should try some spelling variations:
"designed network estimation algorithm" » "designed network optimization algorithm", "defined network estimation algorithm"
"modified learning solution algorithm" » "modified learning evolution algorithm", "modified learning convolution algorithms", "modified learning evolutionary algorithm", "mobile learning solution algorithm", "modified caging solution algorithm", "modified learning convolution 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: (("designed network estimation algorithm") OR ("modified learning solution algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"designed network estimation algorithm\") OR (\"modified learning solution algorithm\"))".
• Removing quotes may allow a broader search: (( designed network estimation algorithm ) OR ( modified learning solution algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("designed network estimation algorithm") OR ("modified learning solution algorithm"))*.