Perhaps you should try some spelling variations:
chung cong » nhung cong, chong cong, chung thong
phung cong » nhung cong, phong cong, nhung chong
hieu xanh » chieu xanh, hieu manh, hieu nganh
thanh tra » thanh toan, thanh hoa
doc hieu » toc thieu, hoc thieu, hoc hien
tra luan » tra quan, tranh luan, tran xuan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - thanh tra luan ((chung cong) OR (phung cong)) dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - thanh tra luan ((chung cong) OR (phung cong)) dan toan cau".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh tra luan ((chung cong) OR (phung cong)) dan toan cau*.