Perhaps you should try some spelling variations:
cac truc » cau truc, cac tru, cac trung
hieu van » hieu va, thien van, lieu va
vu sach » vu bach, su sach, vu khach
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
truc va » thuc va, thuc vat, trung va
van cac » van hac, van cau, van bac
so sanh » do sanh
cuu tre » cua tre, cau tren, cau treo
v nang » va nang, vu nang, van nang
y nang » ky nang, ly nang, may 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: ((vu sach) OR (so sanh)) ((y nang) OR (v nang)) xa hoi. hieu van cac truc va danh vi cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (so sanh)) ((y nang) OR (v nang)) xa hoi. hieu van cac truc va danh vi cuu tre~".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (so sanh)) ((y nang) OR (v nang)) xa hoi. hieu van cac truc va danh vi cuu tre*.