Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
theo sach » thuoc sach, te sach, theo lich
hieu cach » hieu cac, chieu sach, hieu ca
tran tuan » tran xuan, tran quang, tran thanh
tuan dung » tuan duong, tran dung, tan dung
dung dung » ung dung, dung ung, dung dong
dung giao » nang giao
thong cap » thong cac, trung cap, thong cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((theo sach) or (hieu cach)) - thanh tran tuan dung dung giao thong cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((theo sach) OR (hieu cach)) - thanh tran tuan dung dung giao thong cap.
• Adding a wildcard symbol may retrieve word variants: toc ((theo sach) or (hieu cach)) - thanh tran tuan dung dung giao thong cap*.