Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
vu chao » vu cao, vu cham, vu chat
ky dang » ky nang, ky danh
dan hoi » van hoi, dang khoi, dong hoi
vai cua » dai cua, hai cua, lai cua
dan hoc » van hoc, dan toc, dai hoc
dai hoi » dai hoc, dai hai, dai moi
hieu vu » hieu va, hieu ve, hieu su
tu sac » tu sach, tu cac, tu san
xu van » tu van, vu van, su van
cua te » cua tu
sac ky » cac ky, sai ky

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 dang ((((dan hoi) or (dan hoc))) or (dai hoi)). hieu vu chao xu van hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky dang ((((dan hoi) OR (dan hoc))) OR (dai hoi)). hieu vu chao xu van hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: tu sac ky dang ((((dan hoi) or (dan hoc))) or (dai hoi)). hieu vu chao xu van hanh vai cua te*.