Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hoat tuc » hoang tuc, luat tuc, hoat quy
su sach » so sach, vu sach
va hanh » van hanh, va thanh, va danh
y dang » ky dang, 2 dang, b dang
_ dang » _ dan, 2 dang, _ danh
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua
qua » quan

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y dang) OR (_ dang)) xa hoi. hieu qua hoat tuc va hanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: su sach ((y dang) OR (_ dang)) xa hoi. hieu qua hoat tuc va hanh vi cua triet*.