Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
tranh cua » doanh cua, manh cua
dung cong » dung trong
chi xanh » chi anh, chi danh, chi hanh
tan toan » tan tran, tap toan, van toan
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.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - canh tranh cua ((nhung cong) or (dung cong)) tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - canh tranh cua ((nhung cong) OR (dung cong)) tan toan cau.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - canh tranh cua ((nhung cong) or (dung cong)) tan toan cau*.