Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
thanh di » thanh doi, thanh de, thanh do
va thanh » gia thanh, ban thanh, va tinh
dang xay » dang van, van xay
cam tuc » cam xuc, cam tu, nam thuc
sach ky » sac ky, sach y, sach ty
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
tuc va » thuc va, truc va, tuc xa
cua te » cua tu
va cam » va cham, va cac, va cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky ((nang xa) or (dang xay)) hoi. hieu va cam tuc va thanh di ((cua te) or (cua thuoc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang xa) OR (dang xay)) hoi. hieu va cam tuc va thanh di ((cua te) OR (cua thuoc)).
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang xa) or (dang xay)) hoi. hieu va cam tuc va thanh di ((cua te) or (cua thuoc))*.