Perhaps you should try some spelling variations:
imputation techniques » implantation technique, augmentation techniques, segmentation techniques
inhalation technique » floatation technique, implantation technique, inhaler technique
novel inhalation » novel indication
co imputation » co limitation
based novel » based anodes
based co » based code, based no2, based two

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( learning-based co imputation techniques ) OR ( learning-based novel inhalation technique ))~".
• Adding a wildcard symbol may retrieve word variants: (( learning-based co imputation techniques ) OR ( learning-based novel inhalation technique ))*.