Perhaps you should try some spelling variations:
augmentation techniques » segmentation techniques, imputation techniques
simulation technique » imputation techniques, inhalation technique, implantation technique
closed simulation » based simulation
no2 augmentation » data augmentation
based closed » based code, based cross
based no2 » based co, based n

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 closed simulation technique ) or ( learning-based no2 augmentation techniques ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( learning-based closed simulation technique ) OR ( learning-based no2 augmentation techniques )).
• Adding a wildcard symbol may retrieve word variants: (( learning-based closed simulation technique ) or ( learning-based no2 augmentation techniques ))*.