Perhaps you should try some spelling variations:
nang lai » nang tai, mang lai, nang cai
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
ve cham » va cham, ve chat, vu cham
vai cua » dai cua, hai cua, lai cua
xuc van » duc van, luc van, xuc ban
lai hoi » dai hoi, lai hoa, lai roi
y nang » ky nang, ly nang, v nang
ve cam » ve cac, va cam, ve cai
vi cua » di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang lai hoi. hieu ((ve cam) or (ve cham)) xuc van hanh ((vi cua) or (vai cua)) tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang lai hoi. hieu ((ve cam) OR (ve cham)) xuc van hanh ((vi cua) OR (vai cua)) tuc.
• Adding a wildcard symbol may retrieve word variants: su sach y nang lai hoi. hieu ((ve cam) or (ve cham)) xuc van hanh ((vi cua) or (vai cua)) tuc*.