Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
duong cong » dung cong, luong cong, duong trong
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cua duong » cua dong, cua huong, qua duong
van phan » van phong, van thanh, luan phan
sat phan » sat nhan, vat phan, xuat phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - canh tranh cua duong cong ((van phan) or (sat phan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh cua duong cong ((van phan) OR (sat phan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh cua duong cong ((van phan) or (sat phan)) cau*.