Perhaps you should try some spelling variations:
thieu lang » hieu lang, thieu khang, thieu quang
lam thuoc » nam thuoc, am thuc, cay thuoc
thuoc van » thuoc va, thuc van, thuoc ban
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
dua tren » dung tren
cau tren » cu tren, dau tren, ca tren
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
van lam » van nam

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 thieu lang xa hoi. hieu van lam thuoc van hanh vi ((dua tren) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thieu lang xa hoi. hieu van lam thuoc van hanh vi ((dua tren) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: su sach thieu lang xa hoi. hieu van lam thuoc van hanh vi ((dua tren) or (cau tren))*.