Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu lang » chieu sang, hieu quang, nhieu tang
luan dong » luan cong, quan dong, luan nong
dong cong » duong cong, dung cong, dang cong
anh dong » anh huong, anh son
cong san » cong tac
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - ((hanh trinh) or (anh dong)) luan dong cong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((hanh trinh) OR (anh dong)) luan dong cong san than cap.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((hanh trinh) or (anh dong)) luan dong cong san than cap*.