
ii
ACKNOWLEDGMENTS
First and foremost, I am greatly indebted to my supervisors for their
continuous support and conscientious supervision. Namely, I wish to express my
deep indebtedness to Assoc. Prof. Dr. Nguyễn Văn Long for his kindness of giving
me useful feedback, advice, and his constant encouragement to help me to
overcome obstacles. I am extremely thankful to Dr. Nguyễn Thị Minh Tâm for her
enlightening comments and discussions with our several-hour meetings for this
thesis. Thus, my supervisors fire up my confidence, determination in accomplishing
my dissertation.
I would like to express my great gratitude to Assoc. Prof. Dr. Phan Văn Hòa,
Assoc. Prof. Dr. Trần Hữu Phúc, Assoc. Prof. Dr. Nguyễn Thị Quỳnh Hoa, Assoc.
Prof. Dr. Lưu Quý Khương, Dr. Ngũ Thiện Hùng, Dr. Lê Thị Giao Chi, Dr. Võ Thị
Kim Anh for their precious comments and encouragement throughout my process of
writing this dissertation. I am also grateful to Assoc. Prof. Dr. Nguyễn Thị Thu Hiền,
Assoc. Prof. Dr. Nguyễn Ngọc Vũ, and Assoc. Prof. Dr. Ngô Hữu Hoàng for their
critical reviews, comments, advice in the version of manuscript at the faculty board of
doctoral dissertation examiners, leading to the revision for this version of current
manuscript. Besides, I deeply thank Dr. Lý Ngọc Toàn for his help, especially for
agreeing to code the subset of data as an intercoder to ensure the reliability of study.
I would like to thank the personnel departments, administrators in the Arm of
Special Forces in general, in Military University of Special Forces in particular for
their generosity in creating all favorable conditions including time, financial
supports, and permission for me to conduct the research. I also wish to express my
sincere gratitude to the leaders of the Faculty of Fundamental Science, and
colleagues who have encouraged me to finish this study.
Last but not least, I am very grateful to my family: my parents, my brothers
and sisters, my two children, and my husband. Especially, this dissertation could not
have been completed without the immense support of my husband, who kept on
encouraging me to never quit, even when things seemed hopeless.