Perhaps you should try some spelling variations:
mitigation techniques » imputation techniques
floatation technique » inhalation technique, implantation technique, imputation techniques
based anodes » based anode, based code
k mitigation » _ mitigation, _ litigation
based k » based _, based n, based 3d

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