Perhaps you should try some spelling variations:
tuong thanh » truong thanh, muong thanh, luong thanh
nhung tuong » nhung huong, nhung phuong, hung vuong
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
thanh toan » thanh hoa, thanh san, tinh toan
hieu van » hieu va, thien van, lieu va
toan ban » van ban
tung va » trung va, tuong va, dung va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu van) or (chieu sang)) - thanh tung va nhung tuong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu van) OR (chieu sang)) - thanh tung va nhung tuong thanh toan ban*.