Perhaps you should try some spelling variations:
segmentation techniques » augmentation techniques, imputation techniques
simulation techniques » imputation techniques, mitigation techniques, inhalation technique
closed simulation » based simulation
n segmentation » 3d segmentation
based closed » based code, based cross
based n » based _, based k, based no2

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 n segmentation techniques ) or ( learning-based closed simulation techniques ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( learning-based n segmentation techniques ) OR ( learning-based closed simulation techniques )).
• Adding a wildcard symbol may retrieve word variants: (( learning-based n segmentation techniques ) or ( learning-based closed simulation techniques ))*.