Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
ly nang » ky nang, ly hang, ly vang
hieu ve » hieu va
lanh ly » lanh lay, doanh ly, khanh ly
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, dua tren
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 x hoi. ((hieu ve) OR (hieu van)) cau truc va hanh di ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh ly nang x hoi. ((hieu ve) OR (hieu van)) cau truc va hanh di ((cua tre) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: thuat lanh ly nang x hoi. ((hieu ve) OR (hieu van)) cau truc va hanh di ((cua tre) or (cua triet))*.