Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
dung trung » dung trong, quang trung, dung ung
trung thpt » truong thpt, trung thuc, trung nhat
tieu sach » chieu sach, dien sach, te sach
tran dang » tran quang, tran hoang, tranh hang
van dung » van dong, xay dung, tin dung
thpt ban » thpt dan, thuat ban, thpt tran
ban cau » bang cau, ban can, van cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - ((nhanh lang) or (tran dang)) van dung trung thpt ban cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - ((nhanh lang) OR (tran dang)) van dung trung thpt ban cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - ((nhanh lang) or (tran dang)) van dung trung thpt ban cau*.