Perhaps you should try some spelling variations:
sach kem » hanh kem
luat tuc » luat thue
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
va luat » va thuat, vay luan, cua luat
tuc may » truc may, tu may, tuc xay
tinh di » tinh doi, trinh di, tinh da
cuu tre » cua tre, cau tren, cau treo
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
di cuu » di cau, di cua, dinh cuu

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 kem) or (sac ky)) nang ma hoi. hieu va luat tuc may tinh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach kem) OR (sac ky)) nang ma hoi. hieu va luat tuc may tinh di cuu tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach kem) or (sac ky)) nang ma hoi. hieu va luat tuc may tinh di cuu tre*.