Perhaps you should try some spelling variations:
"learning-based shape augmentation techniques" » "learning-based shape segmentation techniques", "learning-based shape imputation techniques", "learning-based image augmentation techniques", "learning-based data augmentation techniques", "learning-based sphere augmentation techniques"
"learning-based a simulation techniques" » "learning-based a imputation techniques", "learning-based a mitigation techniques", "learning-based a segmentation techniques", "learning-based _ simulation techniques", "learning-based k simulation techniques", "learning-based n simulation 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 a simulation techniques") or ("learning-based shape augmentation techniques"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("learning-based a simulation techniques") OR ("learning-based shape augmentation techniques")).
• Removing quotes may allow a broader search: (( learning-based a simulation techniques ) or ( learning-based shape augmentation techniques )).
• Adding a wildcard symbol may retrieve word variants: (("learning-based a simulation techniques") or ("learning-based shape augmentation techniques"))*.