Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tran tuan » tran xuan, tran quang, tran thanh
tranh cua » doanh cua, manh cua
trong tan » trong quan, trong cac, trong ca
tan toan » tan tran, tap toan, van toan
toan tap » 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 - hanh ((tran tuan) or (tranh cua)) dung trong tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet tach - hanh ((tran tuan) OR (tranh cua)) dung trong tan toan tap*.