Perhaps you should try some spelling variations:
"learning-based two segmentation techniques" » "learning-based two augmentation techniques", "learning-based 3d segmentation techniques", "learning-based tool segmentation techniques", "learning-based co segmentation techniques"
"learning-based twode imputation techniques" » "learning-based twode implantation technique", "learning-based twode augmentation techniques", "learning-based twode floatation technique", "learning-based anode imputation techniques", "learning-based code imputation techniques", "learning-based anodes imputation techniques", "learning-based toolde imputation techniques"

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