Perhaps you should try some spelling variations:
augmentation techniques » segmentation techniques, imputation techniques
limitation techniques » imputation techniques, mitigation techniques, segmentation techniques
n augmentation » data augmentation
two limitation » co limitation, food limitation
based two » based tool, based co
based n » based _, based k, based no2

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 n augmentation techniques ) OR ( learning-based two limitation techniques ))~.
• Adding a wildcard symbol may retrieve word variants: (( learning-based n augmentation techniques ) or ( learning-based two limitation techniques ))*.