Perhaps you should try some spelling variations:
"modified rough approximation algorithm" » "modified rough approximation algorithms", "modified rough approximations algorithm", "modified one approximation algorithm"
"modified adaptive quantization algorithms" » "modified adaptive estimation algorithms", "modified adaptive optimization algorithms", "modified adaptive ventilation algorithms", "modified passive quantization algorithms"

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

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