Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh dai » hanh tai, hanh dao, vanh dai
va hanh » van hanh, va thanh, va danh
sach ty » sach y, sach tu, sach thu
su sach » so sach, vu sach
ty nang » ky nang, ty xang, ty hang
va cao » va cac, va co, va dao
xuc va » duc va, tuc va, luc va
ve cam » ve cham, ve cac, va cam
x hoi » o hoi, x ho, 5 hoi

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 ty nang ((x hoi) or (xa hoi)). hieu ((ve cam) or (va cao)) xuc va hanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang ((x hoi) OR (xa hoi)). hieu ((ve cam) OR (va cao)) xuc va hanh dai cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ((x hoi) or (xa hoi)). hieu ((ve cam) or (va cao)) xuc va hanh dai cua triet*.