Perhaps you should try some spelling variations:
"modified coverage approximation algorithms" » "modified average approximation algorithms"
"modified male evolution algorithms" » "modified male evolution algorithm", "modified male convolution algorithms", "modified male solution algorithm", "modified sales evolution algorithms", "modified early evolution algorithms", "modified time evolution 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 male evolution algorithms"))~.
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