Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
hieu van » hieu va, thien van, lieu va
lanh ty » lanh tu, canh tay, lanh tho
ty nang » ky nang, ty xang, ty hang
van cac » van hac, van cau, van bac
cac duc » cac du, cao duc, cac dac
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
vi cua » di cua
x hoi » xa hoi, o hoi, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat lanh ty nang ((x hoi) or (x ho)). hieu van cac duc va hanh ((vi cua) or (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh ty nang ((x hoi) OR (x ho)). hieu van cac duc va hanh ((vi cua) OR (vai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: thuat lanh ty nang ((x hoi) or (x ho)). hieu van cac duc va hanh ((vi cua) or (vai cua)) tre*.