Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
ly nang » ly hang, ly vang, ly quang
hieu ve » hieu van
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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) OR (ky nang)) x hoi. ((hieu ve) OR (hieu va)) cau truc va hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh ((ly nang) or (ky nang)) x hoi. ((hieu ve) OR (hieu va)) cau truc va hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: thuat lanh ((ly nang) or (ky nang)) x hoi. ((hieu ve) OR (hieu va)) cau truc va hanh vi cua tre*.