Perhaps you should try some spelling variations:
thai nhiem » trai nghiem, thai nghien, thi nghiem
duong cong » dung cong, luong cong, duong trong
hoi nhiem » phoi nhiem, chon nhiem, o nhiem
anh phang » danh thang, anh phuong, manh thang
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
anh phan » hanh phan, anh nhan, anh han
va duong » van duong, va tuong, va huong
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: ((hoi nhiem) or (thai nhiem)) tang - ((anh phang) or (anh phan)) va duong cong danh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoi nhiem) OR (thai nhiem)) tang - ((anh phang) OR (anh phan)) va duong cong danh toan cao.
• Adding a wildcard symbol may retrieve word variants: ((hoi nhiem) or (thai nhiem)) tang - ((anh phang) or (anh phan)) va duong cong danh toan cao*.