Perhaps you should try some spelling variations:
van nang » van quang, van ban, van dong
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
su sach » so sach, vu sach
vu nang » vuc nang, vu dang, v nang
hieu va » lieu va, hieu qua
va nang » da nang, cam nang, kha nang
nang vi » hang vi, nang ji, nang si
cuu tre » cua tre, cau tren, cau treo
vi cuu » vi luu, vinh cuu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((vu nang) or (van nang)) xa hoi. hieu va cac nuoc va nang vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((vu nang) OR (van nang)) xa hoi. hieu va cac nuoc va nang vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: su sach ((vu nang) or (van nang)) xa hoi. hieu va cac nuoc va nang vi cuu tre*.