Perhaps you should try some spelling variations:
cau thuc » cau truc, cuu thuc, can thuc
vat hanh » vat thanh, van hanh, va hanh
cau tren » cu tren, dau tren, ca tren
su sach » so sach, vu sach
qua cau » quan cau, qua cac, qua ca
y nang » ky nang, ly nang, v nang
vi cau » va cau, ve cau, di cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang x ho. hieu qua cau thuc vat hanh vi cau tren~.
• Adding a wildcard symbol may retrieve word variants: su sach y nang x ho. hieu qua cau thuc vat hanh vi cau tren*.