Perhaps you should try some spelling variations:
implantation technique » imputation techniques, floatation technique, inhalation technique
limitation techniques » imputation techniques, mitigation techniques, augmentation techniques
n implantation » novel implantation, _ implementation
co limitation » food limitation, _ limitations
based co » based code, based no2, based two
based n » based _, based k, based no2

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( learning-based co limitation techniques ) OR ( learning-based n implantation technique ))~.
• Adding a wildcard symbol may retrieve word variants: (( learning-based co limitation techniques ) or ( learning-based n implantation technique ))*.