Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thuoc van » thuoc va, thuc van, thuoc ban
hieu van » hieu va, thien van, lieu va
manh le » thanh le
sach ky » sac ky, sach y, sach ty
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
mang xa » mang may, dang xay, mang cua
anh le » oanh le, anh ve, thanh le
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: su sach ky ((mang xa) or (lang xa)) hoi. hieu van nam thuoc van ((anh le) OR (manh le)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((mang xa) OR (lang xa)) hoi. hieu van nam thuoc van ((anh le) OR (manh le)) cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((mang xa) or (lang xa)) hoi. hieu van nam thuoc van ((anh le) OR (manh le)) cua te*".