Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
canh thanh » canh tranh, danh thanh, anh thanh
thuy thong » thuy hong, thuy trong, thuyet thong
cong ngang » cong nhan, cong quang, cong lang
ngang toan » nganh toan, dang toan, quang toan
huy thong » duy thong, huy phong, huu thong
toan cau » 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: ho ((chieu xanh) or (chieu sach)) - canh thanh ((thuy thong) OR (huy thong)) cong ngang toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - canh thanh ((thuy thong) OR (huy thong)) cong ngang toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sach)) - canh thanh ((thuy thong) OR (huy thong)) cong ngang toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - canh thanh ((thuy thong) OR (huy thong)) cong ngang toan cau*.