Perhaps you should try some spelling variations:
tao khoi » thao khoa, lao khoa, tao boi
tan lanh » tai lanh, thanh lanh, tan thanh
lanh hoi » lanh hai, lanh voi, hanh thoi
va trien » va truyen, va thiet, va tuyen
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
ky danh » ky anh, ky dang
xay hoi » xa hoi, tay hoi, cay phoi
tao hoi » tao boi, tay hoi, thao hoc
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
ve cac » va cac, vien cac

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 ky danh ((xay hoi) OR (((tao hoi) OR (tao khoi)))). hieu ve cac duc tan lanh hoi va trien~.
• Adding a wildcard symbol may retrieve word variants: su sach ky danh ((xay hoi) or (((tao hoi) or (tao khoi)))). hieu ve cac duc tan lanh hoi va trien*.