Perhaps you should try some spelling variations:
thanh hoach » thanh hoa, thanh hoang, thach hoanh
thanh tung » thanh cong
hieu lang » chieu sang, hieu quang, nhieu tang
tan thanh » tran thanh, tang thanh, toan thanh
qua dung » quang dung, qua song, qua cong
cong tan » cong tac, cong san, cong thanh
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 - thanh tung ((qua dung) OR (su dung)) cong tan thanh hoach~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - thanh tung ((qua dung) OR (su dung)) cong tan thanh hoach".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh tung ((qua dung) OR (su dung)) cong tan thanh hoach*.