Perhaps you should try some spelling variations:
"modified objective optimized algorithms" » "modified objective optimized algorithm", "modified objective optimizer algorithms", "modified objective optimization algorithms", "modified objective optimal algorithms"
"mapping learning estimation algorithm" » "mapping learning emotion algorithm", "mapping lighting estimation algorithm", "machine learning estimation algorithm", "enabling learning estimation algorithm"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("mapping learning estimation algorithm") OR ("modified objective optimized algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"mapping learning estimation algorithm\") OR (\"modified objective optimized algorithms\"))*".
• Removing quotes may allow a broader search: (( mapping learning estimation algorithm ) OR ( modified objective optimized algorithms ))*.