Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
lanh hai » manh hai, thanh hai, lang chai
ban lanh » ban hanh, ban linh, ban anh
cua tre » cua te, cuu tre, dua tren
xuc ban » duc ban, cuc ban, quoc ban
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
tay hoi » tay ho, tao hoi, tay thai
xay hoi » xa hoi, cay phoi, gay thoi
ky danh » ky anh, ky dang
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky danh ((xay hoi) OR (tay hoi)). hieu ve cam xuc ban lanh hai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky danh ((xay hoi) OR (tay hoi)). hieu ve cam xuc ban lanh hai ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky danh ((xay hoi) OR (tay hoi)). hieu ve cam xuc ban lanh hai ((cua tre) or (cua triet))*".