Perhaps you should try some spelling variations:
"learning-based code segmentation techniques" » "learning-based code augmentation techniques", "learning-based code imputation techniques", "learning-based 3d segmentation techniques", "learning-based shape segmentation techniques", "learning-based anode segmentation techniques"
"learning-based tool floatation technique" » "learning-based tool inhalation technique", "learning-based tool implantation technique", "learning-based tool imputation techniques", "learning-based two floatation 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 tool floatation technique") or ("learning-based code segmentation techniques"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("learning-based tool floatation technique") OR ("learning-based code segmentation techniques"))*.
• Removing quotes may allow a broader search: (( learning-based tool floatation technique ) or ( learning-based code segmentation techniques ))*.