Perhaps you should try some spelling variations:
thanh trung » thanh tung
hanh trang » canh tranh, hanh trinh, minh trang
chiet tach » chieu sach
hieu lang » chieu sang, hieu quang, nhieu tang
dung cong » dung trong
ban thanh » ban hanh, ban hang
thanh cap » thanh lap, hanh cap, than cap
cua dung » cua dang, cua dong, qua dung
cong ban » cong bang, cong san, cong tan

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 (chiet tach)) - ((hanh trang) OR (thanh trung)) cua dung cong ban thanh cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chiet tach)) - ((hanh trang) OR (thanh trung)) cua dung cong ban thanh cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (chiet tach)) - ((hanh trang) OR (thanh trung)) cua dung cong ban thanh cap*".