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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( learning-based co inhalation technique ) or ( learning-based no2 floatation technique ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( learning-based co inhalation technique ) OR ( learning-based no2 floatation technique )).
• Adding a wildcard symbol may retrieve word variants: (( learning-based co inhalation technique ) or ( learning-based no2 floatation technique ))*.