Perhaps you should try some spelling variations:
cong thong » cong thuong, cong trong, dong thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
tang luan » dung luan
cong hong » cong huong, cong khong, cong dong
mang cua » manh cua, dung cua, ban cua
van toan » van tuan, van tan, van thanh
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: theo tieu xanh - hanh ((mang cua) or (tang luan)) ((cong hong) OR (cong thong)) van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh ((mang cua) OR (tang luan)) ((cong hong) OR (cong thong)) van toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh ((mang cua) or (tang luan)) ((cong hong) OR (cong thong)) van toan cao*".