Perhaps you should try some spelling variations:
qua cham » qua hai, qua cac, qua cua
cua viet » ca viet, hoa viet, cua vat
so sanh » do sanh
nang ma » tang ma, sang ma, nang cao
va cham » va chat, va tham
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
sanh y » sinh y, anh y, hanh y
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh y nang ma hoi. hieu ((qua cham) OR (va cham)) truc va hanh vi cua viet~".
• Adding a wildcard symbol may retrieve word variants: so sanh y nang ma hoi. hieu ((qua cham) OR (va cham)) truc va hanh vi cua viet*.