Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
hoc thieu » toc thieu
trung vap » trung cap, trung va, trung van
dung cong » dung trong
vap dung » van dung, ap dung, va dung
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau

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 thieu) OR (hoc hien)) sach - hanh trung vap dung cong tan tran cau~.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc hien)) sach - hanh trung vap dung cong tan tran cau*.