Perhaps you should try some spelling variations:
augmentation techniques » segmentation techniques
imputation techniques » implantation technique, segmentation techniques, floatation technique
no2de augmentation » image augmentation
co imputation » co limitation
based no2de » based anode, based code, based no2
based co » based code, based no2, based two

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 no2de augmentation techniques ) or ( learning-based co imputation techniques ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( learning-based no2de augmentation techniques ) OR ( learning-based co imputation techniques )).
• Adding a wildcard symbol may retrieve word variants: (( learning-based no2de augmentation techniques ) or ( learning-based co imputation techniques ))*.