Perhaps you should try some spelling variations:
imputation techniques » implantation technique, augmentation techniques, segmentation techniques
indication technique » inhalation technique, reduction technique, truncation technique
code indication » novel indication
k imputation » _ computation, _ reputation
based code » based anode
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 k imputation techniques ) OR ( learning-based code indication technique ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( learning-based k imputation techniques ) OR ( learning-based code indication technique ))".
• Adding a wildcard symbol may retrieve word variants: (( learning-based k imputation techniques ) OR ( learning-based code indication technique ))*.