Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
luan nhung » luan chung, luan hung, quan nhung
cong thanh » cong trinh, cong tan, truong thanh
dong thanh » truong thanh
lieu tinh » trieu tinh, diep tinh, bien tinh
cong san » cong tac
tran cau » tran chau, toan cau, ran cau
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - canh tranh luan nhung ((((cong thanh) OR (dong thanh))) or (cong san)) tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - canh tranh luan nhung ((((cong thanh) OR (dong thanh))) OR (cong san)) tran cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - canh tranh luan nhung ((((cong thanh) OR (dong thanh))) or (cong san)) tran cau".
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - canh tranh luan nhung ((((cong thanh) OR (dong thanh))) or (cong san)) tran cau*.