Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
ban hanh » ban hang
cau treo » cau theo, cau tren, cau triet
vien dai » hien dai
dai xuc » dai xu, dai luoc, dai thuc
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va danh, dao hanh
nang co » nang cao, nang doc, nang noi
co hoi » co hoc, co loi
vi cau » va cau, ve cau, di cau

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 co hoi. hieu vien dai xuc ((((va hanh) or (ban hanh))) or (va thanh)) vi cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang co hoi. hieu vien dai xuc ((((va hanh) OR (ban hanh))) OR (va thanh)) vi cau treo.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang co hoi. hieu vien dai xuc ((((va hanh) or (ban hanh))) or (va thanh)) vi cau treo*.