Perhaps you should try some spelling variations:
hanh trung » thanh trung, manh trung, danh trung
hanh trang » thanh trung, canh tranh, hanh trinh
tuan nhung » quan nhung, tuan hung, thuat nhung
nhung cong » dung cong, thong cong, hang cong
hien sach » dien sach, kien sach, thien hach
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban
toan tap » toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sach - ((hanh trung) OR (hanh trang)) tuan nhung cong tan ((toan cao) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien sach - ((hanh trung) or (hanh trang)) tuan nhung cong tan ((toan cao) OR (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - ((hanh trung) or (hanh trang)) tuan nhung cong tan ((toan cao) OR (toan tap))*.