Perhaps you should try some spelling variations:
lam nguoi » dao nguoi, tay nguoi
hoc sach » hoc sinh, hoc cac, hoc anh
van hanh » van thanh, ban hanh, van anh
ky dang » ky nang, ky danh
xay hoi » tay hoi, cay phoi, gay thoi
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
lam loc » lam duoc, lam ngoc
vi cua » vai cua, di 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: hoc sach ky dang ((xay hoi) or (xa hoi)). hieu va ((lam loc) or (lam nguoi)) van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ky dang ((xay hoi) OR (xa hoi)). hieu va ((lam loc) OR (lam nguoi)) van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: hoc sach ky dang ((xay hoi) or (xa hoi)). hieu va ((lam loc) or (lam nguoi)) van hanh vi cua te*.