Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
thanh va » thanh van, hanh va, thanh ha
thanh vi » hanh vi, thanh ve, nhanh vi
thuc va » thuc vat, thuc dan, thuc day
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va, hieu qua
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
va nam » van nam, ha nam, va nay
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 sac ky ((nang xa) or (nang x)) hoi. hieu va nam thuc va ((thanh vi) or (thanh va)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky ((nang xa) OR (nang x)) hoi. hieu va nam thuc va ((thanh vi) OR (thanh va)) cua tu.
• Adding a wildcard symbol may retrieve word variants: vu sac ky ((nang xa) or (nang x)) hoi. hieu va nam thuc va ((thanh vi) or (thanh va)) cua tu*.