Perhaps you should try some spelling variations:
trien quang » tran quang, tuyen quang, dien quang
thinh doan » chinh doanh, hinh toan, thi doan
thong cong » trong cong, thong thong, phong chong
hoc trien » hoc tren, hoc tien, hoc truyen
tong cong » trong cong, cong cong, dung cong
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
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 - thinh doan he ((thong cong) OR (tong cong)) tac ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc trien quang - thinh doan he ((thong cong) OR (tong cong)) tac ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc trien quang - thinh doan he ((thong cong) OR (tong cong)) tac ((toan cau) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc trien quang - thinh doan he ((thong cong) OR (tong cong)) tac ((toan cau) or (toan ban))*.