Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
van than » van thanh, van thang, van phan
van tuan » van quan, van ban, anh tuan

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 - canh tranh ((cua thong) or (cua khong)) thong ((van than) OR (van tuan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - canh tranh ((cua thong) OR (cua khong)) thong ((van than) OR (van tuan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - canh tranh ((cua thong) or (cua khong)) thong ((van than) OR (van tuan)) cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - canh tranh ((cua thong) or (cua khong)) thong ((van than) OR (van tuan)) cao*.