Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
trong quan » thong quan, tong quan, thong quang
hoc thiet » hoc thieu, hoc thuyet, hoc hien
nhan dang » nhan dan, phan dang, tran dang
luan dung » lan dung, luan hung, luan ung
luan dong » luan cong, quan dong, luan nong
quan toan » quang toan, quan doan, xuan toan
toan ban » van 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 dang ((luan dung) OR (luan dong)) trong quan toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thiet tach - nhan dang ((luan dung) OR (luan dong)) trong quan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thiet tach - nhan dang ((luan dung) OR (luan dong)) trong quan toan ban*.