Perhaps you should try some spelling variations:
thien van » thi van
vu sach » vu bach, su sach, vu khach
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cam tuc » cam xuc, cam tu, nam thuc
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa
vi cuu » vi luu, vinh cuu
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: vu sach y nang ((x hoi) or (xa hoi)). ((hieu va) or (thien van)) cam tuc va danh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang ((x hoi) OR (xa hoi)). ((hieu va) OR (thien van)) cam tuc va danh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: vu sach y nang ((x hoi) or (xa hoi)). ((hieu va) or (thien van)) cam tuc va danh vi cuu tre*.