Perhaps you should try some spelling variations:
theo trieu » theo tieu, theo chieu, thep tieu
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
dong cong » duong cong, dung cong, dang cong
cua dong » chua dong, cua cong, cua dang
tac toan » tap toan, hach toan, tich toan
tam toan » tap toan, tam than, pham toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo trieu tinh - hanh tranh cua dong cong ((tac toan) OR (tam toan)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo trieu tinh - hanh tranh cua dong cong ((tac toan) OR (tam toan)) ban".
• Adding a wildcard symbol may retrieve word variants: theo trieu tinh - hanh tranh cua dong cong ((tac toan) OR (tam toan)) ban*.