Perhaps you should try some spelling variations:
"learning-based n segmentation techniques" » "learning-based n augmentation techniques", "learning-based 3d segmentation techniques", "learning-based _ segmentation techniques", "learning-based k segmentation techniques", "learning-based no2 segmentation techniques"
"learning-based novel imputation techniques" » "learning-based novel implantation technique", "learning-based novel augmentation techniques", "learning-based novel floatation technique", "learning-based novel implantation techniques", "learning-based novel indication techniques", "learning-based anodes imputation techniques", "learning-based _ovel imputation techniques", "learning-based kovel imputation techniques", "learning-based no2ovel imputation techniques"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"learning-based novel imputation techniques\") OR (\"learning-based n segmentation techniques\"))~".
• Removing quotes may allow a broader search: (( learning-based novel imputation techniques ) OR ( learning-based n segmentation techniques ))~.
• Adding a wildcard symbol may retrieve word variants: (("learning-based novel imputation techniques") OR ("learning-based n segmentation techniques"))*.