Perhaps you should try some spelling variations:
mitigation techniques » imputation techniques
simulation technique » imputation techniques, inhalation technique, implantation technique
co mitigation » _ mitigation, _ litigation, co limitation
3d simulation » _ simulation, a simulation, mri simulation
based co » based code, based no2, based two
based 3d » based _, based k, 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 co mitigation techniques ) or ( learning-based 3d simulation technique ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( learning-based co mitigation techniques ) OR ( learning-based 3d simulation technique )).
• Adding a wildcard symbol may retrieve word variants: (( learning-based co mitigation techniques ) or ( learning-based 3d simulation technique ))*.