Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh dung » thanh dung, anh dung, hanh dong
luan dong » luan cong, quan dong, luan nong
dong cong » duong cong, dung cong, dang cong
tra cau » tra sau, ta cau, toan cau
tra cuu » trau cua, trua cua

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