Perhaps you should try some spelling variations:
"modified notion approximation algorithms" » "modified network approximation algorithms", "modified time approximation algorithms", "modified one approximation algorithms"
"modified mild evolution algorithm" » "modified mild solution algorithm", "modified mild evolutionary algorithm", "modified mild convolution algorithms", "modified time evolution algorithm", "modified mild solutions algorithm", "modified male evolution algorithm", "modified seird evolution algorithm", "modified bi1 evolution algorithm"

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 mild evolution algorithm") OR ("modified notion approximation algorithms"))~.
• Removing quotes may allow a broader search: (( modified mild evolution algorithm ) or ( modified notion approximation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified mild evolution algorithm") or ("modified notion approximation algorithms"))*.