Perhaps you should try some spelling variations:
"modified adamdamverage approximation algorithms" » "modified average approximation algorithms", "modified _damdamverage approximation algorithms", "modified dfdamdamverage approximation algorithms", "modified adamdamdamverage approximation algorithms"
"modified a classification algorithm" » "modified _ classification algorithm", "modified gas classification algorithm", "modified image classification algorithm", "modified df classification algorithm", "modified adam classification algorithm"

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