Perhaps you should try some spelling variations:
cong quang » luong quang, thong quang, duong quang
thuong con » thuong dong, truong cong, thong cong
thai viet » thi viet, tai viet, mai viet
viet sach » viet anh, dien sach, viet tech
cong luan » tong luan, cong tuan, dong luan
dan phan » doan phan, dan chan, van phan
con dan » cong dan, co dan, con ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: thai viet sach - thanh ((cong luan) or (cong quang)) thuong con dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thai viet sach - thanh ((cong luan) OR (cong quang)) thuong con dan phan tu*.