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

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 novel inhalation technique") or ("learning-based k segmentation techniques"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("learning-based novel inhalation technique") OR ("learning-based k segmentation techniques"))*.
• Removing quotes may allow a broader search: (( learning-based novel inhalation technique ) or ( learning-based k segmentation techniques ))*.