Perhaps you should try some spelling variations:
cham hoc » cham soc, chat hoc, cham hoi
vu sach » vu bach, su sach, vu khach
ky dang » ky nang, ky danh
xay hoi » tay hoi, cay phoi, gay thoi
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
di cua » dai cua, doi cua, de 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: ((vu sach) or (vay khach)) ky dang ((xay hoi) or (xa hoi)). hieu ve cham hoc va hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vay khach)) ky dang ((xay hoi) OR (xa hoi)). hieu ve cham hoc va hanh di cua te.
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (vay khach)) ky dang ((xay hoi) or (xa hoi)). hieu ve cham hoc va hanh di cua te*.