Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh van » thanh san, thanh toan, thanh phan
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
hieu va » lieu va, hieu qua
cay dua » chay dua, cay lua, ca dua
van cua » vang cua, ban cua, dan cua
bay dua » chay dua
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang ((ma hoi) or (ma hoa)). hieu va ((bay dua) OR (cay dua)) ban thanh van cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang ((ma hoi) OR (ma hoa)). hieu va ((bay dua) OR (cay dua)) ban thanh van cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang ((ma hoi) or (ma hoa)). hieu va ((bay dua) OR (cay dua)) ban thanh van cua triet*".