Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
hang tai » hang va
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
cua tre » cua te, cuu tre, cua triet
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
su cac » tu cac, su cao, su can

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 cac ky ((hang tai) OR (dung tai)) roi. hieu ve cham luc ((va hanh) OR (va danh)) vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky ((hang tai) or (dung tai)) roi. hieu ve cham luc ((va hanh) OR (va danh)) vai cua tre~".
• Adding a wildcard symbol may retrieve word variants: su cac ky ((hang tai) or (dung tai)) roi. hieu ve cham luc ((va hanh) OR (va danh)) vai cua tre*.