Perhaps you should try some spelling variations:
"modified network estimation algorithms" » "modified network estimation algorithm", "modified network optimization algorithms", "modified network optimisation algorithm", "certified network estimation algorithms", "defined network estimation algorithms", "modified near estimation algorithms"
"enabling learning method algorithm" » "mapping learning method algorithm", "enabling learning mom algorithm", "enabling learning methods algorithm", "enabling graining methods algorithm", "enabling 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: (("enabling learning method algorithm") OR ("modified network estimation algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"enabling learning method algorithm\") OR (\"modified network estimation algorithms\"))".
• Removing quotes may allow a broader search: (( enabling learning method algorithm ) OR ( modified network estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("enabling learning method algorithm") OR ("modified network estimation algorithms"))*.