Perhaps you should try some spelling variations:
trien quang » tran quang, tuyen quang, dien quang
cong thanh » dong thanh, cong trinh, truong thanh
hoc trien » hoc tren, hoc tien, hoc truyen
hanh doan » hanh doanh, thanh toan, thinh doan
cong tan » cong tac, cong san, cong ty
toan cau » toan cao, toan ban, toan tap
doan he » toan he, dan he, doan thi

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc trien quang - hanh doan he thong ((cong tan) OR (cong thanh)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc trien quang - hanh doan he thong ((cong tan) OR (cong thanh)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc trien quang - hanh doan he thong ((cong tan) OR (cong thanh)) toan cau*.