Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
truc ban » thuc ban, truc dan, truc van
ban hanh » ban hang
ky lang » ky dang, ky tang, tay lang
van cau » van dau, van hau, van chat
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
te sai » te tai, te bai, te lai
ha hoi » hoa hoi, ha noi, xa hoi

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: te sai ((ky lang) OR (ky nang)) ha hoi. hieu van cau truc ban hanh kem ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sai ((ky lang) OR (ky nang)) ha hoi. hieu van cau truc ban hanh kem ((cua tre) or (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: te sai ((ky lang) OR (ky nang)) ha hoi. hieu van cau truc ban hanh kem ((cua tre) or (cuu tre))*.