Perhaps you should try some spelling variations:
mitigation techniques » imputation techniques
floatation technique » inhalation technique, implantation technique, imputation techniques
3d mitigation » _ mitigation, _ litigation
k floatation » _ floatation
based 3d » based _, based co, based n
based k » based _, based n, 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 k floatation technique ) OR ( learning-based 3d mitigation techniques ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( learning-based k floatation technique ) OR ( learning-based 3d mitigation techniques ))".
• Adding a wildcard symbol may retrieve word variants: (( learning-based k floatation technique ) OR ( learning-based 3d mitigation techniques ))*.