Perhaps you should try some spelling variations:
mitigation techniques » imputation techniques
reduction techniques » reduction technique, imputation techniques
3dnode reduction » model reduction
a mitigation » _ mitigation, _ litigation
based 3dnode » based anode, based code, based anodes
based a » based _, based k, based n

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( learning-based a mitigation techniques ) OR ( learning-based 3dnode reduction techniques ))~".
• Adding a wildcard symbol may retrieve word variants: (( learning-based a mitigation techniques ) OR ( learning-based 3dnode reduction techniques ))*.