Perhaps you should try some spelling variations:
quang trung » truong trung
hanh trung » thanh trung, hanh trang, manh trung
cuong dung » tuong duong, ung dung, thong dung
trong dung » thong dung, trung dung, trong rung
tieu sach » chieu sach, dien sach, te sach
dung toan » dung doanh, dung thang, dung thanh
toan cao » toan ban, toan tap

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 - hanh trung ((cuong dung) or (quang trung)) trong dung toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh trung ((cuong dung) OR (quang trung)) trong dung toan cao.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh trung ((cuong dung) or (quang trung)) trong dung toan cao*.