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