Perhaps you should try some spelling variations:
qua cham » qua hai, va cham, qua cua
dong cua » dung cua, cong cua, huong cua
qua cac » cua cac
va hanh » van hanh, va thanh, va danh
doi cua » dai cua, hoi cua
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
luc va » duc va, tuc va, loc va
x hoi » xa hoi, o hoi, x ho

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: su sac ky nang x hoi. hieu ((qua cham) OR (qua cac)) luc va hanh ((doi cua) OR (dong cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang x hoi. hieu ((qua cham) OR (qua cac)) luc va hanh ((doi cua) or (dong cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang x hoi. hieu ((qua cham) OR (qua cac)) luc va hanh ((doi cua) or (dong cua)) tre*.