Perhaps you should try some spelling variations:
duong dang » dung dang, duong dan, duong dung
van cuong » van chuong, van duong, van cong
dang phan » dung phan, nang phan, dang phat
ha cuong » ha cong, dai cuong, tan cuong
phan cau » phan dau, phan cac, phan tu
ho lieu » so lieu, ho kieu, ho chieu
co lieu » cot lieu, co hieu, so lieu

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) or (co lieu)) tinh - canh tranh ((ha cuong) OR (van cuong)) duong dang phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (co lieu)) tinh - canh tranh ((ha cuong) OR (van cuong)) duong dang phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho lieu) or (co lieu)) tinh - canh tranh ((ha cuong) OR (van cuong)) duong dang phan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) or (co lieu)) tinh - canh tranh ((ha cuong) OR (van cuong)) duong dang phan cau*.