Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
ban hanh » ban hang
tru nang » tra nang, tri nang, truc nano
cau cuc » cau cua, cau luc, cau truc
cua tre » cua te, cuu tre, cua triet
cuc ban » cua ban, cac ban, cuu ban
tu cach » tu cac
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
va cau » van cau, va cac, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (su sach)) tru nang xa hoi. hieu va cau cuc ban hanh vi ((cua tre) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) tru nang xa hoi. hieu va cau cuc ban hanh vi ((cua tre) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su sach)) tru nang xa hoi. hieu va cau cuc ban hanh vi ((cua tre) or (cua viet))*.