Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
cau tren » cu tren, dau tren, ca tren
nang mo » nang meo, nang ma, nang co
hieu va » lieu va, hieu qua
va hanh » van hanh, va danh, ban hanh
te sach » toc sach
tai cau » tai cac, tai cao
mo hoi » mo phoi, mo hoc, co hoi
va cam » va cham, va cac, va cao

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) or (te sach)) ky nang mo hoi. hieu va cam xuc ((va hanh) or (va thanh)) tai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (te sach)) ky nang mo hoi. hieu va cam xuc ((va hanh) OR (va thanh)) tai cau tren.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) ky nang mo hoi. hieu va cam xuc ((va hanh) or (va thanh)) tai cau tren*.