Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
truc va » thuc va, thuc vat, trung va
lanh ly » lanh lay, doanh ly, khanh ly
cua tre » cua te, cuu tre, cua triet
ly nang » ky nang, ly hang, ly vang
ve cac » va cac, vien cac
va cua » va chua, via cua, ca cua
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 va 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 va cua tre*.