Perhaps you should try some spelling variations:
quantization algorithm » estimation algorithm
passive quantization » adaptive quantization
modified passive » modified adaptive
nursing pre » nursing care
using pre » using one, using ph

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified passive quantization algorithm ) or ( code ((nursing pre) OR (using pre)) algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified passive quantization algorithm ) OR ( code ((nursing pre) OR (using pre)) algorithm )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified passive quantization algorithm ) or ( code ((nursing pre) OR (using pre)) algorithm ))".
• Adding a wildcard symbol may retrieve word variants: (( modified passive quantization algorithm ) or ( code ((nursing pre) OR (using pre)) algorithm ))*.