Perhaps you should try some spelling variations:
dung truong » duong truong, dung trong, dung trung
nhanh lang » nhanh quang, nhanh thang, nhanh dong
theo dien » theo tieu, thu dien, thuy dien
dien sach » dien anh
nhan dang » nhan dan, phan dang, tran dang
van dung » van dong, xay dung, tin dung
thpt ban » thpt dan, thuat ban, thpt tran
ban can » ban dan, ban hang, ban hanh

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

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