Perhaps you should try some spelling variations:
heritability studies » reliability studies, variability studies, permeability studies
test heritability » sense heritability, test reliability, test variability
da literatura » la literatura, a literatura, de literatura
di filosofia » la filosofia, e filosofia
filosofia da » filosofia de, filosofia del, filosofia e
studies di » studies die, studies div, studies ds

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: test heritability studies di filosofia da literatura*.