Perhaps you should try some spelling variations:
trien quang » tran quang, tuyen quang, dien quang
hoc trien » hoc tren, hoc tien, hoc truyen
bang cong » dang cong, bang song, hang cong
trung va » truong va, trang va, trung ha
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban
tung va » tuong va, dung va, vung va

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 - thanh ((tung va) OR (trung va)) bang cong tac toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc trien quang - thanh ((tung va) OR (trung va)) bang cong tac toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc trien quang - thanh ((tung va) OR (trung va)) bang cong tac toan tap*.