Perhaps you should try some spelling variations:
progressive transformation » processing transformation, projective transformation, projective transformations
progressive deformation » progressive depreciation, progressive education, progressive evolution
progressive relaxation » progressive taxation

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: ((((progressive deformation) OR (progressive relaxation))) OR (progressive transformation)) patriots.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((progressive deformation) OR (progressive relaxation))) or (progressive transformation)) patriots".
• Adding a wildcard symbol may retrieve word variants: ((((progressive deformation) OR (progressive relaxation))) or (progressive transformation)) patriots*.