Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh va » thanh van, hanh va, thanh ha
tuc gia » tac gia, duc gia, toc gia
su sach » so sach, vu sach
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
ma hoi » mai hoi, xa hoi, me hoi
va cua » va chua, via cua, ca cua
ve cam » ve cham, ve cac, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang ((ma hoi) OR (ma hoa)). hieu ((ve cam) or (va cam)) tuc gia thanh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ((ma hoi) OR (ma hoa)). hieu ((ve cam) OR (va cam)) tuc gia thanh va cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ((ma hoi) OR (ma hoa)). hieu ((ve cam) or (va cam)) tuc gia thanh va cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang ((ma hoi) OR (ma hoa)). hieu ((ve cam) or (va cam)) tuc gia thanh va cua triet*.