Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu lang » chieu sang, hieu quang, nhieu tang
cong tac » cong ty
ho hieu » ho chieu, hoi hieu, nho hieu
tam ban » tai ban, tao ban, tam ben
tay ban » tai ban, tay bac, tao ban
tac ran » tac can, tac van, tac quan
ran cau » van cau, ban cau, can cau

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 - thanh trung ((tam ban) OR (tay ban)) cong tac ran cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - thanh trung ((tam ban) OR (tay ban)) cong tac ran cau".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh trung ((tam ban) OR (tay ban)) cong tac ran cau*.