Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
hanh tang » hanh trang, anh tang, hanh mang
viet dung » viet hung, viet huong, viet trung
vat dung » van dung, va dung, mat duong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - hanh tang ((vat dung) OR (viet dung)) cong tan toan cau~".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh tang ((vat dung) OR (viet dung)) cong tan toan cau*.