Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hieu su » hieu sau, tieu su, hieu so
va hanh » va thanh, va danh, ban hanh
ky sang » ky nang, ky dang, ky tang
lap hoi » lai hoi, lap hai, luat hoi
su chao » su cao, sau chan
chao su » cao su, chao xu, achat su
vi cua » vai cua, di cua
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky sang ((lap hoi) OR (lap doi)). hieu su chao su ((va hanh) OR (van hanh)) vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky sang ((lap hoi) or (lap doi)). hieu su chao su ((va hanh) OR (van hanh)) vi cua te~".
• Adding a wildcard symbol may retrieve word variants: tu sai ky sang ((lap hoi) or (lap doi)). hieu su chao su ((va hanh) OR (van hanh)) vi cua te*.