Perhaps you should try some spelling variations:
augmentation techniques » segmentation techniques
imputation techniques » implantation technique, segmentation techniques, floatation technique
tool augmentation » data augmentation, tool orientation
law imputation » data imputation
based tool » based two
based law » case law

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