Perhaps you should try some spelling variations:
cua thuong » cua truong, cua phuong, ca thuong
theo bien » thieu bien, theo tieu, che bien
bien tinh » bi tinh, yen tinh, diep tinh
hanh mang » nhanh mang, hanh trang, nhanh lang
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban, toan tap
con tan » con than, con tap, con ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo bien tinh - ((hanh mang) or (canh tranh)) cua thuong ((con tan) OR (cong tan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo bien tinh - ((hanh mang) OR (canh tranh)) cua thuong ((con tan) OR (cong tan)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo bien tinh - ((hanh mang) or (canh tranh)) cua thuong ((con tan) OR (cong tan)) toan cao".
• Adding a wildcard symbol may retrieve word variants: theo bien tinh - ((hanh mang) or (canh tranh)) cua thuong ((con tan) OR (cong tan)) toan cao*.