Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
qua cac » cua cac
hanh de » hanh ve, hanh kem
xuc va » tuc va, luc va
xac va » tac va, ac va, bac va
de cua » le cua, te cua, dieu cua

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 lang xa hoi. hieu qua cac ((((xuc va) OR (xac va))) or (duc va)) hanh de cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky lang xa hoi. hieu qua cac ((((xuc va) OR (xac va))) OR (duc va)) hanh de cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky lang xa hoi. hieu qua cac ((((xuc va) OR (xac va))) or (duc va)) hanh de cua triet".
• Adding a wildcard symbol may retrieve word variants: so sach ky lang xa hoi. hieu qua cac ((((xuc va) OR (xac va))) or (duc va)) hanh de cua triet*.