Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
trinh toan » tinh toan, thanh toan, trinh han
doi chieu » doc hieu, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
dung cong » dung trong
toan cau » toan cao, toan ban, toan tap
doi chi » doi khi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chi) OR (doi chieu)) xanh - canh tranh cua ((nhung cong) OR (dung cong)) trinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chi) or (doi chieu)) xanh - canh tranh cua ((nhung cong) OR (dung cong)) trinh toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((doi chi) or (doi chieu)) xanh - canh tranh cua ((nhung cong) OR (dung cong)) trinh toan cau*.