Perhaps you should try some spelling variations:
orientation techniques » augmentation techniques, segmentation techniques, imputation techniques
section techniques » reduction techniques, reduction technique, vision techniques
tool orientation » _ orientation, ebsd orientation
code section » cross section, code region
based tool » based two
based code » based anode

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 tool orientation techniques ) or ( learning-based code section techniques ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( learning-based tool orientation techniques ) OR ( learning-based code section techniques )).
• Adding a wildcard symbol may retrieve word variants: (( learning-based tool orientation techniques ) or ( learning-based code section techniques ))*.