Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
phat xuc » chat xuc, phat xuat, phap xu
nang ma » tang ma, sang ma, nang cao
te sach » toc sach
hieu va » lieu va, hieu qua
va danh » va dan, va hanh, dia danh
va dinh » van dinh, va kinh, va tinh
cac cau » cac mau, bac cau, ca cau
tu cach » tu cac
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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: ((tu cach) OR (te sach)) y nang ma hoi. hieu va phat xuc ((va danh) OR (va dinh)) cac cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (te sach)) y nang ma hoi. hieu va phat xuc ((va danh) OR (va dinh)) cac cau tren~".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (te sach)) y nang ma hoi. hieu va phat xuc ((va danh) OR (va dinh)) cac cau tren*.