... sufficient data These data are collected from textbooks, internet, and authentic English and Vietnamese business complaint letters written by businesses and customers as well as other business associates ... transitivity pattern, mood pattern, thematic pattern and cohesion in both English and Vietnamese business complaint letters; - Identifying the similarities and differences in both English and Vietnamese ... in English and Vietnamese: A Systemic Functional Comparison, Unpublished M .A Dissertation, College of Foreign Languages, VNU- Hanoi 16 Mai, Đặng Phương, (2007), English and Vietnamese Job Application...