Perhaps you should try some spelling variations:
trong luan » truong luan, tong luan, trong quan
thiet tach » chiet tach, thien hach, thuat tach
hoc thiet » hoc thieu, hoc thuyet, hoc hien
nhan dung » chan dung, nhan dang, ngan dung
ung trong » dung trong, cung trong, vung trong
luan ung » luan hung, luon ung, luan chung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thiet tach - nhan dung luan ung trong luan van ban~.
• Adding a wildcard symbol may retrieve word variants: hoc thiet tach - nhan dung luan ung trong luan van ban*.