Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dung cong » dung trong
cong lang » cong vang, cong luong, cong quang
lang phan » nang phan, lang thang, lang phong
anh dinh » hanh dinh, lanh dinh, anh kinh
phan dau » phan tu, hang dau
cu dung » su dung, duc dung

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 - ((anh dinh) or (hanh tinh)) cu dung cong lang phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((anh dinh) OR (hanh tinh)) cu dung cong lang phan dau*.