Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh dinh » thanh dinh, hinh dinh, hanh tinh
dung cong » dung trong
hang cong » dang cong, hang nong, bang cong
dinh cuu » dinh chi
lang van » dang van, tang van, hoang van
van hai » van ha, van chat, van hanh

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 dinh cuu ((dung cong) OR (hang cong)) lang van hai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh dinh cuu ((dung cong) OR (hang cong)) lang van hai*".