Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang tao » sang tao, nang tao, vang tao
hieu cac » hieu va, hieu van, dieu can
hieu luc » hieu luat, hieu qua
tan hanh » tan thanh, tang hanh, toan hanh
hanh dan » thanh dan, hanh san, canh dan
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
tao hoi » tao khoi, tao boi, tay hoi
dan cua » dan ca, ban cua, dai cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky dang tao hoi. hieu ((hieu cac) OR (hieu luc)) duc tan hanh dan cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky dang tao hoi. hieu ((hieu cac) OR (hieu luc)) duc tan hanh dan cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky dang tao hoi. hieu ((hieu cac) OR (hieu luc)) duc tan hanh dan cua triet*.