Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
nhung cong » dung cong, thong cong, hang cong
cong quang » luong quang, thong quang, duong quang
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
quang van » quang ban, quan van, quang uan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) OR (chieu sach)) - hanh trung cua nhung cong quang van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sach)) - hanh trung cua nhung cong quang van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sach)) - hanh trung cua nhung cong quang van ban*.