Perhaps you should try some spelling variations:
mitigation techniques » imputation techniques
reduction techniques » reduction technique, imputation techniques
tool mitigation » error mitigation
model reduction » model predictive
based model » based code, based modeling, based anodes
based tool » based two

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