Perhaps you should try some spelling variations:
thieu tach » chiet tach, chieu sach, hieu cach
thien hach » thien thanh, hien hanh
trung cua » truong cua, trung tuan, trung cap
trong tan » trong quan, trong cac, trong ca
tran van » luan van
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 ((thieu tach) OR (thien hach)) - hanh ((trung cua) or (tran van)) dung trong tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu tach) OR (thien hach)) - hanh ((trung cua) OR (tran van)) dung trong tan toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu tach) OR (thien hach)) - hanh ((trung cua) or (tran van)) dung trong tan toan tap*".