Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban danh » ban doanh, ban hanh, ban dan
cham cuc » cham cuu, pham cuc, pham chuc
vu sach » vu bach, su sach, vu khach
sach tu » sach thu, cach tu, sach ty
tu nang » tru nang, tu nong, tu nano
hieu va » lieu va, hieu qua
va cham » va chat, va tham
cuc ban » cua ban, cac ban, cuu ban
cua tre » cua te, cuu tre, dua tren
danh d » danh di, danh du, anh d

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 tu nang ((xa hoi) or (x ho)). hieu va cham cuc ban danh d ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach tu nang ((xa hoi) OR (x ho)). hieu va cham cuc ban danh d ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: vu sach tu nang ((xa hoi) or (x ho)). hieu va cham cuc ban danh d ((cua tre) or (cua triet))*.