Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hanh tai » thanh tai, hang tai, han tai
hanh vai » hanh vi, hanh va, hanh van
thuc ban » thuoc ban, thuc dan, thu ban
ky mang » ky nang, ke mang, ky dang
may hoi » may thoi, tay hoi, mai hoi
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
va tam » van tam, va tham, va tap
va tac » va cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky mang may hoi. hieu ((va tam) OR (va tac)) thuc ban ((hanh vai) or (hanh tai)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky mang may hoi. hieu ((va tam) OR (va tac)) thuc ban ((hanh vai) OR (hanh tai)) cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky mang may hoi. hieu ((va tam) OR (va tac)) thuc ban ((hanh vai) or (hanh tai)) cua viet*".