Perhaps you should try some spelling variations:
va thanh » ban thanh, va tinh, le thanh
nam thuc » nam thuoc, am thuc, nam thu
nang xa » lang xa, nang ma, mang xa
hieu he » hieu ve, hiem he, hieu le
vu sac » vu sach, vu san, va sac
vi cua » vai cua, di cua
he nam » ha nam, nghe nam
sac ky » cac ky, sai ky
cua te » cua tu

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: vu sac ky ((nang xa) OR (nang x)) hoi. hieu he nam thuc ((va thanh) OR (gia thanh)) vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky ((nang xa) or (nang x)) hoi. hieu he nam thuc ((va thanh) OR (gia thanh)) vi cua te~".
• Adding a wildcard symbol may retrieve word variants: vu sac ky ((nang xa) or (nang x)) hoi. hieu he nam thuc ((va thanh) OR (gia thanh)) vi cua te*.