Perhaps you should try some spelling variations:
imputation techniques » implantation technique, augmentation techniques, segmentation techniques
reduction technique » reduction techniques, truncation technique
co imputation » co limitation
3d reduction » _ reduction
based co » based code, based no2, based two
based 3d » based _, based k, 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 co imputation techniques ) OR ( learning-based 3d reduction technique ))~.
• Adding a wildcard symbol may retrieve word variants: (( learning-based co imputation techniques ) or ( learning-based 3d reduction technique ))*.