Perhaps you should try some spelling variations:
thanh quang » nhanh quang, thanh quan, tranh quang
than quang » tran quang, phan quang, thac quang
tieu xanh » tieu danh, chieu xanh, dieu hanh
dung cong » dung trong
cong bang » cuong bang, dong bang, hong bang
bang than » bang thanh, ban than, sang than
cua dung » cua dang, cua dong, qua dung
than cau » toan cau, phan cau, than cap

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 - ((thanh quang) OR (than quang)) cua dung cong bang than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((thanh quang) OR (than quang)) cua dung cong bang than cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((thanh quang) OR (than quang)) cua dung cong bang than cau*.