Perhaps you should try some spelling variations:
segmentation techniques » augmentation techniques, imputation techniques
mitigation techniques » imputation techniques
mil segmentation » 3d segmentation
no2 mitigation » _ mitigation, error mitigation
based no2 » based co, based n
based mil » based gel

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 no2 mitigation techniques ) OR ( learning-based mil segmentation techniques ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( learning-based no2 mitigation techniques ) OR ( learning-based mil segmentation techniques ))".
• Adding a wildcard symbol may retrieve word variants: (( learning-based no2 mitigation techniques ) OR ( learning-based mil segmentation techniques ))*.