Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
va triet » va thiet, va trien, ve triet
sach ky » sac ky, sach y, sach ty
luc ban » duc ban, cuc ban, luc bat
ky dang » ky nang, ky danh
ma hoi » mai hoi, xa hoi, me hoi
ve cac » va cac, vien cac
vai va » mai va, dai va, hai va
ve cam » ve cham, va cam, 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: thuoc sach ky dang ((ma hoi) or (ma hoa)). hieu ((ve cam) OR (ve cac)) luc ban thanh vai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky dang ((ma hoi) OR (ma hoa)). hieu ((ve cam) OR (ve cac)) luc ban thanh vai va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ky dang ((ma hoi) or (ma hoa)). hieu ((ve cam) OR (ve cac)) luc ban thanh vai va triet".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky dang ((ma hoi) or (ma hoa)). hieu ((ve cam) OR (ve cac)) luc ban thanh vai va triet*.