Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
ban thanh » ban hanh, ban hang
cau treo » cau theo, cau tren, cau triet
sach ty » sach y, sach tu, sach thu
tai cau » tai cac, tai cao
xuc ban » duc ban, cuc ban, quoc ban
tu sach » thu sach, su sach, te sach
cao hoi » co hoi, cao hoc, tao hoi
ty nang » ky nang, ty xang, ty hang
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty nang ((cao hoi) OR (cau hoi)). hieu ((va cam) or (va cao)) xuc ban thanh tai cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ((cao hoi) OR (cau hoi)). hieu ((va cam) OR (va cao)) xuc ban thanh tai cau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang ((cao hoi) OR (cau hoi)). hieu ((va cam) or (va cao)) xuc ban thanh tai cau treo".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ((cao hoi) OR (cau hoi)). hieu ((va cam) or (va cao)) xuc ban thanh tai cau treo*.