Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
hanh thang » nhanh thang, thanh thang, hanh trang
tieu xanh » tieu danh, chieu xanh, dieu hanh
va phuong » va thuong, cac phuong
thang va » hang va, trang va, thong va
cong van » cong vang, cong san, song van
tan cao » toan cao, tan ca, tai cao
tay cao » tay co, toan cao
tao cao » bao cao, toan cao

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 thang va phuong cong van ((tan cao) or (((tay cao) OR (tao cao))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh thang va phuong cong van ((tan cao) OR (((tay cao) OR (tao cao))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh thang va phuong cong van ((tan cao) or (((tay cao) OR (tao cao))))*".