Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
danh viet » anh viet, ninh viet, nang viet
viet cua » viec cua, viet ca, viet qua
lam duoc » nam duoc, luat duoc, tao duoc
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach kem
va danh » va dinh, va dan, va hanh
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: doc ((sach ky) OR (sach ty)) lang xa hoi. hieu va ((lam duoc) or (lam thuoc)) va danh viet cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((sach ky) OR (sach ty)) lang xa hoi. hieu va ((lam duoc) OR (lam thuoc)) va danh viet cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((sach ky) OR (sach ty)) lang xa hoi. hieu va ((lam duoc) or (lam thuoc)) va danh viet cua te".
• Adding a wildcard symbol may retrieve word variants: doc ((sach ky) OR (sach ty)) lang xa hoi. hieu va ((lam duoc) or (lam thuoc)) va danh viet cua te*.