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