Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thiet » hoc thieu, hoc thuyet, hoc hien
doi chieu » doc hieu, doi chi, mot chieu
trang cua » tranh cua, tang cua, trung cua
cua trong » cua truong, cua trung, qua trong
than manh » tran manh, tham manh, than man
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than

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 thiet) OR (doi chieu)) tach - hanh trang cua trong cong dan than manh~.
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (doi chieu)) tach - hanh trang cua trong cong dan than manh*.