Perhaps you should try some spelling variations:
nam thuc » nam thuoc, nam thu, nam tu
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
hieu he » hieu ve, hiem he, hieu le
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
vi cua » vai cua, di cua
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
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 sac ky ((nang xa) OR (nang ma)) hoi. hieu he ((nam thuc) or (am thuc)) va thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky ((nang xa) OR (nang ma)) hoi. hieu he ((nam thuc) OR (am thuc)) va thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky ((nang xa) OR (nang ma)) hoi. hieu he ((nam thuc) or (am thuc)) va thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: vu sac ky ((nang xa) OR (nang ma)) hoi. hieu he ((nam thuc) or (am thuc)) va thanh vi cua te*.