Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh ve » hanh ve, thanh va, thanh vien
thanh vi » hanh vi, thanh va, nhanh vi
cao dua » cao duc, ca dua, cay dua
dua ban » dia ban, cua ban, qua ban
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
ve cao » va cao, ve bao, ve cac

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 ((ty nang) or (ty hang)) xa hoi. hieu ve cao dua ban ((thanh vi) or (thanh ve)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ty nang) OR (ty hang)) xa hoi. hieu ve cao dua ban ((thanh vi) OR (thanh ve)) cua triet.
• Adding a wildcard symbol may retrieve word variants: so sach ((ty nang) or (ty hang)) xa hoi. hieu ve cao dua ban ((thanh vi) or (thanh ve)) cua triet*.