Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat
cong cong » cong dong, trong cong, dung cong
theo chu » theo chieu, cho chu, chao chu
chu xang » chua xang, chu bang, chuc nang
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: theo chu xang - thanh ((trinh quan) OR (trinh han)) cong cong san toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xang - thanh ((trinh quan) OR (trinh han)) cong cong san toan cau".
• Adding a wildcard symbol may retrieve word variants: theo chu xang - thanh ((trinh quan) OR (trinh han)) cong cong san toan cau*.