Perhaps you should try some spelling variations:
thanh hoi » thanh hoai, thanh hoa, thanh hai
van thanh » ban thanh, van tuan
thu sach » tu sach, thuat sach, thuoc sach
thi hang » thi hanh, thi nang, thi hong
xanh tai » hanh tai, anh tai, vanh tai
cau treo » cau theo, cau tren, cau triet
ki nang » ky nang
thi van » thi lan, thi hanh, thi nang
va xanh » va hanh, va danh, va anh
tai cau » tai cac, tai 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 ((thi hang) or (ki nang)) xa hoi. thi van thanh hoi va xanh tai cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((thi hang) OR (ki nang)) xa hoi. thi van thanh hoi va xanh tai cau treo.
• Adding a wildcard symbol may retrieve word variants: thu sach ((thi hang) or (ki nang)) xa hoi. thi van thanh hoi va xanh tai cau treo*.