Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
dau tren » dau tien, dat tren, dau tieng
ve cham » ve chat, ve chim, viet cham
sach ky » sac ky, sach y, sach ty
vu cham » vu kham, tu cham, qua cham
cao hoc » co hoc, cho hoc, chat hoc
va hanh » van hanh, va thanh, va danh
hanh ke » hanh kem, thanh ke, hanh ky
va cham » va chat, va tham
xuc va » duc va, tuc va, luc va
ke dau » ke cau, ke dan, ke dam

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 ky nang cao hoc. hieu ((((ve cham) OR (va cham))) or (vu cham)) xuc va hanh ke dau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang cao hoc. hieu ((((ve cham) OR (va cham))) OR (vu cham)) xuc va hanh ke dau tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang cao hoc. hieu ((((ve cham) OR (va cham))) or (vu cham)) xuc va hanh ke dau tren*".