Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu xanh » chieu xanh, dieu hanh, tien anh
tieu danh » dieu danh, tiep danh, thien danh
hanh dinh » thanh dinh, hinh dinh, hanh tinh
cu nhung » cua nhung, tu nhung, co nhung
tang tan » tang tai, tang dan, tang ban
tang van » dang van, hoang van, trong van
dinh cu » dinh cuu, dinh chuc, dinh chau

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) or (tieu danh)) - hanh dinh cu nhung cong ((tang tan) OR (tang van)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (tieu danh)) - hanh dinh cu nhung cong ((tang tan) OR (tang van)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) or (tieu danh)) - hanh dinh cu nhung cong ((tang tan) OR (tang van)) cau*".