Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
mot chieu » doi chieu, ho chieu
tang cong » tang cuong, trang cong, dang cong
doc hieu » toc thieu, hoc thieu, hoc hien
trang ha » trang va, trung ha, tang ha
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
ha tang » phap tang, cao tang, kho tang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (doc hieu)) xanh - hanh trang ha tang cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doc hieu)) xanh - hanh trang ha tang cong dan than cau.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doc hieu)) xanh - hanh trang ha tang cong dan than cau*.