Perhaps you should try some spelling variations:
structure transformation » structure transformations, structural transformation, strukturen transformation
transformation a » transformation _
cultural bias » cultural biases, cultural beliefs
der cultural » 2 cultural, 3 cultural, 4 cultural
3 structure » 1.3 structure, 3.2 structure, 3 structural
3.6 micro » 3.1 micro, 3.2 micro, 3.6 macro
luis der » luis de, luis e, louis de
bias 3.6 » bias 2.6, bias 3.1, bias 3.8
luis 3 » luis f, luis c, luis a
a can » _ can, 3 can, 4 can

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: (( luis 3 structure transformation a can ) OR ( luis der cultural bias 3.6 micro ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis 3 structure transformation a can ) or ( luis der cultural bias 3.6 micro ))*.