Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hanh tai » thanh tai, hang tai, han tai
van cac » van cau, van bac, dan cac
van hac » van hoc, van ha, van hai
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
y nang » ky nang, ly nang, v nang

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: su sach y nang xa hoi. hieu ((van cac) OR (van hac)) thuc va hanh tai ((cua triet) OR (su triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ((van cac) or (van hac)) thuc va hanh tai ((cua triet) OR (su triet))~".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((van cac) or (van hac)) thuc va hanh tai ((cua triet) OR (su triet))*.