Perhaps you should try some spelling variations:
approximation algorithm » approximation algorithms
quantization algorithms » estimation algorithms, optimization algorithms
adaptive quantization » adaptive ventilation
modified adaptive » modified passive
modified network » certified network, defined network, modified near

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified network approximation algorithm ) OR ( modified adaptive quantization algorithms ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified network approximation algorithm ) OR ( modified adaptive quantization algorithms ))".
• Adding a wildcard symbol may retrieve word variants: (( modified network approximation algorithm ) OR ( modified adaptive quantization algorithms ))*.