Perhaps you should try some spelling variations:
"modified coverage approximation algorithms" » "modified average approximation algorithms"
"modified load evaluation algorithms" » "modified load evolution algorithm", "modified load estimation algorithms", "modified load convolution algorithms", "modified adam evaluation algorithms", "modified near evaluation algorithms"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified coverage approximation algorithms") OR ("modified load evaluation algorithms"))~.
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