Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
hanh vai » hanh vi, hanh va, hanh tai
lanh ly » lanh lay, doanh ly, khanh ly
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
ly nang » ky nang, ly hang, ly vang
ve cac » va cac, vien cac
ve cau » ke cau, va cau, le cau
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh ly nang ((x hoi) OR (o hoi)). hieu ((ve cau) OR (ve cac)) truc va hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh ly nang ((x hoi) OR (o hoi)). hieu ((ve cau) or (ve cac)) truc va hanh vai cua tre~".
• Adding a wildcard symbol may retrieve word variants: thuat lanh ly nang ((x hoi) OR (o hoi)). hieu ((ve cau) or (ve cac)) truc va hanh vai cua tre*.