Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thien van » thi van
van hanh » van thanh, ban hanh, van anh
hieu van » lieu va, hieu ve
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach ty
nang xa » nang x, lang xa, nang ma
xuc van » duc van, luc van, vuc van
tu nang » tru nang, tu nong, tu nano
hanh di » hanh vi, hanh de, hang di
su sach » so sach, vu sach
di cua » dai cua, doi cua, de cua

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