Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
cua thuong » cua truong, cua phuong, ca thuong
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chieu sach)) - anh tang cua thuong cong ((dan than) OR (dan chan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - anh tang cua thuong cong ((dan than) OR (dan chan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sach)) - anh tang cua thuong cong ((dan than) OR (dan chan)) cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - anh tang cua thuong cong ((dan than) OR (dan chan)) cao*.