Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thiet, hoc tien
hoc thieu » toc thieu, hoc hien
van nhung » van nhuong, va nhung, van hung
toan van » tran van, toan ban, tan van
cong san » cong tac
than cao » toan cao, than cap, than sao
thai cao » tai cao, thoai cac, thuat cao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thien) OR (hoc thieu)) anh - thanh toan van nhung cong san ((than cao) OR (thai cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thien) OR (hoc thieu)) anh - thanh toan van nhung cong san ((than cao) or (thai cao))~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thien) OR (hoc thieu)) anh - thanh toan van nhung cong san ((than cao) or (thai cao))*.