Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
hieu quan » hieu qua, lieu quan, thien quan
hanh tang » hanh trang, anh tang, hanh mang
cua hang » cua dang, cua nhung, cua cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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) or (hieu quan)) - hanh tang ((cua hang) or (cua ban)) cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (hieu quan)) - hanh tang ((cua hang) OR (cua ban)) cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (hieu quan)) - hanh tang ((cua hang) or (cua ban)) cong dan toan cau*.