Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
chat luc » chat xuc, chat lua, nhan luc
luc van » luoc van, luu van, duc van
ky danh » ky anh, ky dang
dan hoi » dan hoc, van hoi, dang khoi
vai cua » dai cua, hai cua, lai cua
dai hoi » dai hoc, dai hai, dai moi
hieu vu » hieu va, hieu ve, hieu su
vu chat » va chat, ve chat, du chat
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
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: tu sac ky danh ((dan hoi) or (dai hoi)). hieu vu chat luc van hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky danh ((dan hoi) OR (dai hoi)). hieu vu chat luc van hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: tu sac ky danh ((dan hoi) or (dai hoi)). hieu vu chat luc van hanh vai cua te*.