Oriental Studies vs Orientalism

Oriental Studies and Orientalism both are nouns.

Word	Noun	Adjective	Verb	Adverb
Oriental Studies	Yes	No	No	No
Orientalism	Yes	No	No	No

As nouns, Oriental Studies and Orientalism are synonyms defined as:

Oriental Studies and Orientalism: the scholarly knowledge of Asian cultures and languages and people

Oriental Studies (noun)	Orientalism (noun)
the scholarly knowledge of Asian cultures and languages and people	the scholarly knowledge of Asian cultures and languages and people