Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
nhieu tang » chieu sang, nhiet nang
hieu lang » chieu sang, hieu quang, hieu van
thanh cac » hanh cac, thanh bac, thanh ca
trang va » tran van, hang va
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
va hung » va nhung, van hung, va huong

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 (nhieu tang)) - hanh trang va hung ((cong ban) or (cong san)) thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (nhieu tang)) - hanh trang va hung ((cong ban) OR (cong san)) thanh cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) OR (nhieu tang)) - hanh trang va hung ((cong ban) or (cong san)) thanh cac".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) OR (nhieu tang)) - hanh trang va hung ((cong ban) or (cong san)) thanh cac*.