VNU JOURNAL OF FOREIGN STUDIES, VOL 37, NO 3 (2021) 60 CHALLENGES IN TRANSLATION OF ENGLISH PHRASEOLOGICAL UNITS WITH ONOMASTIC CONSTITUENTS INTO VIETNAMESE EQUIVALENTS Nguyen Viet Khoa* School of Foreign Languages, Ha Noi University of Science and Technology, No 1 Dai Co Viet Road, Ha Noi, Viet Nam Received 4 February 2021 Revised 11 March 2021; Accepted 15 May 2021 Abstract Translation of phraseological units with proper names (PUPs) is topical for the contemporary translation studies nowadays[.]