Perhaps you should try some spelling variations:
thanh tra » thanh toan, thanh hoa
van nhung » van nhuong, va nhung, van hung
cong danh » cuong danh, cong dan, cong thanh
chi xanh » chi anh, chi danh, chi hanh
cong anh » dong anh, hong anh, cong thanh
tuan cau » toan cau, quan cau, tuan cu
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - ((thanh tra) or (tinh toan)) van nhung ((cong anh) OR (cong danh)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - ((thanh tra) OR (tinh toan)) van nhung ((cong anh) OR (cong danh)) tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - ((thanh tra) or (tinh toan)) van nhung ((cong anh) OR (cong danh)) tuan cau".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - ((thanh tra) or (tinh toan)) van nhung ((cong anh) OR (cong danh)) tuan cau*.