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