Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
cham tuc » nham thuc, pham thuc, tham thuc
hanh ve » hanh vi, hanh va, hanh kem
hanh le » thanh le, hanh de, manh le
tuc van » thuc van, truc van, tuc va
va cham » va chat, va tham
hieu va » lieu va, hieu qua
hoc hoi » hoc khoi, hoc hoa, hoc noi
sac ky » cac ky, sai ky
ho hoi » hoa hoi, hoi hoi, co hoi
su sac » su sach, su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang ((ho hoi) or (hoc hoi)). hieu va cham tuc van ((hanh le) OR (hanh ve)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang ((ho hoi) OR (hoc hoi)). hieu va cham tuc van ((hanh le) OR (hanh ve)) cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang ((ho hoi) or (hoc hoi)). hieu va cham tuc van ((hanh le) OR (hanh ve)) cua viet*".