Perhaps you should try some spelling variations:
tran thong » toan thong, tran hong, tran trong
thong cong » trong cong, tong cong, thong thong
hien sach » dien sach, kien sach, thien hach
thanh tan » thanh toan, thanh tuan, thanh san
cong san » cong tac
toan cau » toan ban, toan tai
toan tap » toan ban
toan cao » 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 hien sach - thanh tan tran thong cong san ((((toan cau) or (toan tap))) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sach - thanh tan tran thong cong san ((((toan cau) OR (toan tap))) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - thanh tan tran thong cong san ((((toan cau) or (toan tap))) or (toan cao))*.