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 dai » vi dai, va dai, vu hai
dai ky » dan ky, dai ly, sai ky
vi cua » vai cua, di cua
cua te » cua tu

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

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