Perhaps you should try some spelling variations:
cac trung » cac truong, bac trung, cao trung
dac trung » duc trung, cac truong, tai trung
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
so sanh » do sanh
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
vi cuu » vi luu, vinh cuu

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) OR (so sanh)) y nang xa hoi. hieu va ((cac trung) OR (dac trung)) va danh vi cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sanh)) y nang xa hoi. hieu va ((cac trung) OR (dac trung)) va danh vi cuu tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) y nang xa hoi. hieu va ((cac trung) OR (dac trung)) va danh vi cuu tre*.