Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
bo sach » co sach, hoc sach
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, dua tren
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ky nang x hoi. hieu ((ve cam) OR (va cam)) luc va hanh vi ((cua triet) OR (cua tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach ky nang x hoi. hieu ((ve cam) OR (va cam)) luc va hanh vi ((cua triet) OR (cua tre))".
• Adding a wildcard symbol may retrieve word variants: bo sach ky nang x hoi. hieu ((ve cam) OR (va cam)) luc va hanh vi ((cua triet) OR (cua tre))*.