Perhaps you should try some spelling variations:
van lang » van nang, va lang, van hang
cham luc » cham soc, nhan luc, cham cuu
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
hieu tu » chieu tu, hieu tuc, hien tu
tu cham » toc cham, thi cham
va hanh » van hanh, va thanh, va danh
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua

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 sach) OR (vu bach)) van lang xa hoi. hieu tu cham luc va hanh vi cua vat~.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu bach)) van lang xa hoi. hieu tu cham luc va hanh vi cua vat*.