Perhaps you should try some spelling variations:
va cham » va chat, va tham
hanh le » thanh le, hanh ve, hanh de
va hanh » van hanh, va thanh, va danh
truc va » thuc va, thuc vat, trung va
mai hoi » mai khoi, dai hoi, lai hoi
vu cac » va cac, tu cac, ve cac
ve cam » ve cham, ve cac, va cam
me hoi » le hoi
le cua » ly cua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "vu cac ky nang ((me hoi) OR (mai hoi)). hieu ((ve cam) OR (va cham)) truc va hanh le cua vat~".
• Adding a wildcard symbol may retrieve word variants: vu cac ky nang ((me hoi) OR (mai hoi)). hieu ((ve cam) OR (va cham)) truc va hanh le cua vat*.