Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cua viet » ca viet, hoa viet, cua vat
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
thuc ban » thuoc ban, thuc dan, thu ban
cay phoi » cap phoi, tay hoi, cay cho
vai cua » dai cua, hai cua, lai cua
hieu va » hieu qua
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, gay thoi
sai ky » sac ky
tu sai » tu bai, tu san, tu cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky dang ((xay hoi) or (cay phoi)). ((hieu va) or (lieu va)) nham thuc ban hanh vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky dang ((xay hoi) OR (cay phoi)). ((hieu va) OR (lieu va)) nham thuc ban hanh vai cua viet.
• Adding a wildcard symbol may retrieve word variants: tu sai ky dang ((xay hoi) or (cay phoi)). ((hieu va) or (lieu va)) nham thuc ban hanh vai cua viet*.