Perhaps you should try some spelling variations:
cau trieu » cac trieu, cau triet, chua trieu
ban thanh » ban hanh, ban hang
va thanh » gia thanh, va tinh, le thanh
lang van » dang van, tang van, hoang van
tu tang » tuc tang, tu trang, tu tong
tang ky » dang ky, trong ky, tang khu
va tham » van tham, va cham, va thuat
hieu va » lieu va, hieu qua
van hoi » van hoa, van hoc, van hoe
ky lang » ky nang, ky dang, ky tang
tham du » thap du, tham do, pham duc

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu tang ky lang van hoi. hieu va tham du ((va thanh) OR (ban thanh)) hai ((cau thi) or (cau trieu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu tang ky lang van hoi. hieu va tham du ((va thanh) OR (ban thanh)) hai ((cau thi) OR (cau trieu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu tang ky lang van hoi. hieu va tham du ((va thanh) OR (ban thanh)) hai ((cau thi) or (cau trieu))".
• Adding a wildcard symbol may retrieve word variants: tu tang ky lang van hoi. hieu va tham du ((va thanh) OR (ban thanh)) hai ((cau thi) or (cau trieu))*.