Perhaps you should try some spelling variations:
implantation technique » imputation techniques, inhalation technique
floatation technique » inhalation technique, imputation techniques, truncation technique
nde implantation » novel implantation
no2 floatation » _ floatation
based no2 » based co, based n
based nde » based anode, based code, 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 no2 floatation technique ) or ( learning-based nde implantation technique ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( learning-based no2 floatation technique ) OR ( learning-based nde implantation technique )).
• Adding a wildcard symbol may retrieve word variants: (( learning-based no2 floatation technique ) or ( learning-based nde implantation technique ))*.