Perhaps you should try some spelling variations:
orientation techniques » augmentation techniques, segmentation techniques, imputation techniques
mitigation techniques » imputation techniques
tool orientation » _ orientation, ebsd orientation
two mitigation » _ mitigation, error mitigation
based two » based co

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