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"
"mobile learning method algorithm" » "mobile learning mom algorithm", "machine learning method algorithm", "mobile learning methods algorithm", "mobile graining methods algorithm", "mobile 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 network estimation algorithms") OR ("mobile learning method algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified network estimation algorithms\") OR (\"mobile learning method algorithm\"))".
• Removing quotes may allow a broader search: (( modified network estimation algorithms ) OR ( mobile learning method algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified network estimation algorithms") OR ("mobile learning method algorithm"))*.