Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
hanh vai » hanh vi, hanh va, hanh tai
hieu van » hieu va, thien van, lieu va
te sach » toc sach
vai cuu » vai cua
xa hanh » xa thanh, xa khanh, va hanh
cam tuc » cam xuc, cam tu, dam thuc
sach ky » sac ky, sach y, sach ty
tang ma » mang may, tang van
ky tang » ky nang, ky dang, kho tang
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky tang ma hoi. hieu van ((cam tuc) OR (nam thuc)) xa hanh vai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky tang ma hoi. hieu van ((cam tuc) OR (nam thuc)) xa hanh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky tang ma hoi. hieu van ((cam tuc) OR (nam thuc)) xa hanh vai cuu tre*.