Perhaps you should try some spelling variations:
nam thuoc » nam thu, nha thuoc, cay thuoc
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
nam thuc » am thuc, nam thu, nam tu
vu sach » vu bach, su sach, vu khach
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
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 sach y ((nang xa) or (lang xa)) hoi. hieu ve ((nam thuoc) OR (nam thuc)) va thanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y ((nang xa) OR (lang xa)) hoi. hieu ve ((nam thuoc) OR (nam thuc)) va thanh vi cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y ((nang xa) or (lang xa)) hoi. hieu ve ((nam thuoc) OR (nam thuc)) va thanh vi cua tu".
• Adding a wildcard symbol may retrieve word variants: vu sach y ((nang xa) or (lang xa)) hoi. hieu ve ((nam thuoc) OR (nam thuc)) va thanh vi cua tu*.