Perhaps you should try some spelling variations:
trien quang » tran quang, tuyen quang, dien quang
thong cong » trong cong, tong cong, thong thong
hoc trien » hoc tren, hoc tien, hoc truyen
hanh doan » hanh doanh, thanh toan, thinh doan
dan toan » van toan, dan than, manh toan
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 ((dan toan) or (tan tran)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc trien quang - hanh doan he thong cong ((dan toan) OR (tan tran)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc trien quang - hanh doan he thong cong ((dan toan) or (tan tran)) cau*.