Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » thong cong, hang cong, nhung don
dung cong » dung trong
chi xanh » chi anh, chi danh, chi hanh
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
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) or (thanh trung)) va ((nhung cong) OR (dung cong)) dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - ((canh tranh) OR (thanh trung)) va ((nhung cong) OR (dung cong)) dan than cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - ((canh tranh) or (thanh trung)) va ((nhung cong) OR (dung cong)) dan than cau*".