Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
van phuong » va phuong, van chuong, van phung
hoc thiet » hoc thieu, hoc thuyet, hoc hien
nhan dung » chan dung, nhan dang, ngan dung
van phong » van dong, hai phong
trong tan » trong quan, trong cac, trong ca
tran ban » tranh ban, tran van, toan ban

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 ((van phuong) or (van phong)) trong tan tran ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet tach - nhan dung ((van phuong) OR (van phong)) trong tan tran ban.
• Adding a wildcard symbol may retrieve word variants: hoc thiet tach - nhan dung ((van phuong) or (van phong)) trong tan tran ban*.