Perhaps you should try some spelling variations:
thanh tuan » thanh toan, thanh xuan, thanh thanh
cong thanh » dong thanh, cong trinh, cong tan
bien tinh » bi tinh, yen tinh, ban tinh
cua thong » cua thuong, cua khong, suat thong
cua tong » cua cong, cua dong, cua nong
tuan tu » tuan thu, tran tu, toan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thep ((bien tinh) or (diep tinh)) - canh tranh ((cua thong) OR (cua tong)) cong thanh tuan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thep ((bien tinh) OR (diep tinh)) - canh tranh ((cua thong) OR (cua tong)) cong thanh tuan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thep ((bien tinh) or (diep tinh)) - canh tranh ((cua thong) OR (cua tong)) cong thanh tuan tu".
• Adding a wildcard symbol may retrieve word variants: thep ((bien tinh) or (diep tinh)) - canh tranh ((cua thong) OR (cua tong)) cong thanh tuan tu*.