Perhaps you should try some spelling variations:
quan trong » gian trong
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh mang » nhanh mang, hanh trang, nhanh lang
quan lang » quan hoang, gian lang, quan luan
cong san » cong tac
san toan » van toan, dan toan, manh toan
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 ((hieu manh) OR (chieu sang)) - hanh mang ((quan trong) OR (quan lang)) cong san toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) OR (chieu sang)) - hanh mang ((quan trong) OR (quan lang)) cong san toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) OR (chieu sang)) - hanh mang ((quan trong) OR (quan lang)) cong san toan cau*.