Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh cat » hanh cac, hanh luat, nhanh cay
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
cat cua » chat cua, ca cua, mat cua
ma hoi » mai hoi, ma hoa, me hoi
va cam » va cham, va cao, va cai
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang ((ma hoi) OR (xa hoi)). hieu ((va cac) or (va cam)) xuc va hanh cat cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((ma hoi) OR (xa hoi)). hieu ((va cac) OR (va cam)) xuc va hanh cat cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ((ma hoi) OR (xa hoi)). hieu ((va cac) or (va cam)) xuc va hanh cat cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((ma hoi) OR (xa hoi)). hieu ((va cac) or (va cam)) xuc va hanh cat cua triet*.