Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
hoc sach » hoc sinh, hoc anh
va triet » va thiet, va trien, ve triet
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
hoc cac » hoc cao
ma hoi » mai hoi, xa hoi, me hoi
ve cam » ve cham, ve cac, va cam
vai va » mai va, dai va, hai va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) OR (hoc cac)) ky dang ((ma hoi) or (ma hoa)). hieu ve cam duc ban thanh vai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (hoc cac)) ky dang ((ma hoi) OR (ma hoa)). hieu ve cam duc ban thanh vai va triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc sach) OR (hoc cac)) ky dang ((ma hoi) or (ma hoa)). hieu ve cam duc ban thanh vai va triet*".