Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
van hanh » van thanh, ban hanh, van anh
cham cao » cham vao, chat cao, chay cao
lanh ty » lanh tu, canh tay, lanh tho
va hanh » va thanh, va danh, ban hanh
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
cao hoi » co hoi, cao hoc, tao hoi
ty nang » ky nang, ty xang, ty hang
va cua » va chua, via cua, ca cua
cua te » cua tu

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 ((cao hoi) or (cau hoi)). hieu vu cham cao ((va hanh) OR (van hanh)) va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh ty nang ((cao hoi) OR (cau hoi)). hieu vu cham cao ((va hanh) OR (van hanh)) va cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh ty nang ((cao hoi) or (cau hoi)). hieu vu cham cao ((va hanh) OR (van hanh)) va cua te".
• Adding a wildcard symbol may retrieve word variants: thuat lanh ty nang ((cao hoi) or (cau hoi)). hieu vu cham cao ((va hanh) OR (van hanh)) va cua te*.