Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
danh hai » dang hai, lanh hai, manh hai
thuc day » thuc dan, thuc vat
sach ly » sach y, sach lo, sach ty
hai cau » hai chau, hai chu, hai hau
so sach » so sanh, bo sach, co sach
hieu va » lieu va, hieu qua
ly vang » ly hang, ly van, ly quang
tuc va » thuc va, truc va, tuc xa
ma hoi » mai hoi, ma hoa, me hoi
va lam » van lam, va lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ly vang ((ma hoi) or (xa hoi)). hieu va lam ((tuc va) or (thuc day)) danh hai cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ly vang ((ma hoi) OR (xa hoi)). hieu va lam ((tuc va) OR (thuc day)) danh hai cau treo.
• Adding a wildcard symbol may retrieve word variants: so sach ly vang ((ma hoi) or (xa hoi)). hieu va lam ((tuc va) or (thuc day)) danh hai cau treo*.