Perhaps you should try some spelling variations:
segmentation techniques » augmentation techniques
imputation techniques » implantation technique, augmentation techniques, floatation technique
a segmentation » 3d segmentation, shape segmentation
based no2 » based co, based n
based a » based _, based k, based n

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 a segmentation techniques ) or ( learning-based no2 imputation techniques ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( learning-based a segmentation techniques ) OR ( learning-based no2 imputation techniques )).
• Adding a wildcard symbol may retrieve word variants: (( learning-based a segmentation techniques ) or ( learning-based no2 imputation techniques ))*.