Perhaps you should try some spelling variations:
thanh moi » thanh loi, thanh hoa, thanh hai
ban thanh » ban hanh, ban hang
thuoc ban » thuoc tan, thuoc dang, thu ban
va trien » va truyen, va thiet, va tuyen
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
ha hoi » hoa hoi, ha noi, xa hoi
va nam » van nam, ha nam
va nay » va ngay, va cay
te ban » te bao
moi va » hoi va, mai va, moi ve
te san » ke san, tu san, ta san

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te san) OR (te ban)) ky lang ha hoi. hieu ((va nam) or (va nay)) thuoc ban thanh moi va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te san) OR (te ban)) ky lang ha hoi. hieu ((va nam) OR (va nay)) thuoc ban thanh moi va trien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te san) OR (te ban)) ky lang ha hoi. hieu ((va nam) or (va nay)) thuoc ban thanh moi va trien".
• Adding a wildcard symbol may retrieve word variants: ((te san) OR (te ban)) ky lang ha hoi. hieu ((va nam) or (va nay)) thuoc ban thanh moi va trien*.