Perhaps you should try some spelling variations:
imputation techniques » implantation technique, augmentation techniques, segmentation techniques
floatation technique » inhalation technique, implantation technique, truncation technique
novel imputation » novel implantation, novel indication
based novel » based anodes
based code » based anode

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 novel imputation techniques ) or ( learning-based code floatation technique ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( learning-based novel imputation techniques ) OR ( learning-based code floatation technique )).
• Adding a wildcard symbol may retrieve word variants: (( learning-based novel imputation techniques ) or ( learning-based code floatation technique ))*.