Perhaps you should try some spelling variations:
canh trang » canh tranh, hanh trang, banh trang
hieu manh » chieu xanh, hieu nganh, hien hanh
lang cong » dang cong, bang cong, hang cong
trang va » tran van, hang va
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau
va lang » va nang, hoa lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (dieu hanh)) - canh trang va lang cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (dieu hanh)) - canh trang va lang cong dan chan cau*.