Perhaps you should try some spelling variations:
reduction techniques » reduction technique, imputation techniques
floatation technique » inhalation technique, implantation technique, imputation techniques
twode reduction » model reduction, closed reduction
two floatation » _ floatation
based twode » based anode, based code, based anodes
based two » based tool, based co

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: (( learning-based twode reduction techniques ) OR ( learning-based two floatation technique ))~.
• Adding a wildcard symbol may retrieve word variants: (( learning-based twode reduction techniques ) or ( learning-based two floatation technique ))*.