Perhaps you should try some spelling variations:
mitigation techniques » imputation techniques
inhalation technique » floatation technique, implantation technique, imputation techniques
novel mitigation » civil litigation, novel indication
two inhalation » _ inhalation
based novel » based anodes
based two » based tool, based co

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