Perhaps you should try some spelling variations:
su sach » so sach
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
vu sach » vu bach, vu khach
y nang » ky nang, ly nang, v nang
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, x ho, 5 hoi
va am » va lam, va cam
o hoi » co hoi, o hoc, o hai

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) or (vu sach)) y nang ((x hoi) or (o hoi)). hieu va am thuc va hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) y nang ((x hoi) OR (o hoi)). hieu va am thuc va hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) y nang ((x hoi) or (o hoi)). hieu va am thuc va hanh di cua tre*.