Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
lieu tinh » trieu tinh, diep tinh, bien tinh
tranh cua » doanh cua, manh cua
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
san toan » van toan, dan toan, xuan toan
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 cua ((nhung cong) or (dung cong)) ((san toan) OR (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - canh tranh cua ((nhung cong) OR (dung cong)) ((san toan) OR (manh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - canh tranh cua ((nhung cong) or (dung cong)) ((san toan) OR (manh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - canh tranh cua ((nhung cong) or (dung cong)) ((san toan) OR (manh toan)) cau*.