Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
cua thong » cua thuong, cua khong, cua tong
tung cua » trung cua, tuong cua, dung cua
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu nganh) or (chieu sang)) - thanh tung cua thong ((cong tan) or (cong san)) chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu nganh) OR (chieu sang)) - thanh tung cua thong ((cong tan) OR (cong san)) chan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu nganh) or (chieu sang)) - thanh tung cua thong ((cong tan) or (cong san)) chan cau*.