Perhaps you should try some spelling variations:
nam thuc » nam thuoc, nam tu
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
vu sai » vu hai, vu san, vu dai
sai ky » sac ky
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sai ky lang xa hoi. hieu ve ((((nam thuc) or (nam thu))) or (am thuc)) va thanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sai ky lang xa hoi. hieu ve ((((nam thuc) OR (nam thu))) OR (am thuc)) va thanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: vu sai ky lang xa hoi. hieu ve ((((nam thuc) or (nam thu))) or (am thuc)) va thanh vi cua tu*.