Perhaps you should try some spelling variations:
floatation technique » implantation technique, imputation techniques, truncation technique
inhalation technique » implantation technique, imputation techniques, inhaler technique
two inhalation » _ inhalation
no2 floatation » _ floatation
based two » based tool, based co
based no2 » based co, based n

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 two inhalation technique ) OR ( learning-based no2 floatation technique ))~.
• Adding a wildcard symbol may retrieve word variants: (( learning-based two inhalation technique ) or ( learning-based no2 floatation technique ))*.