Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tham tuc » tham thuc, thai tuc, nham thuc
va thanh » gia thanh, ban thanh, va tinh
thanh ve » hanh ve, thanh va, thanh vien
cao hoi » cau hoi, cao hoc, tao hoi
va tham » van tham, va cham, va thuat
cua tre » cua te, cuu tre, dua tren
su cac » tu cac, su cao, su can
co hoi » co hoc, co loi
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang ((cao hoi) or (co hoi)). lieu va tham tuc va thanh ve ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang ((cao hoi) OR (co hoi)). lieu va tham tuc va thanh ve ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky nang ((cao hoi) or (co hoi)). lieu va tham tuc va thanh ve ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: su cac ky nang ((cao hoi) or (co hoi)). lieu va tham tuc va thanh ve ((cua tre) OR (cua triet))*.