Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
cong quang » luong quang, thong quang, duong quang
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
quang bao » quang cao, quang ban, quang nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu xanh) OR (chieu tinh)) - hanh ((trung cua) or (trung cap)) nhung cong quang bao cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu tinh)) - hanh ((trung cua) OR (trung cap)) nhung cong quang bao cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) OR (chieu tinh)) - hanh ((trung cua) or (trung cap)) nhung cong quang bao cao".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) OR (chieu tinh)) - hanh ((trung cua) or (trung cap)) nhung cong quang bao cao*.