Perhaps you should try some spelling variations:
thuong dong » phuong dong, tuong dong, chuong dong
thuong cong » thong cong, thuong con, truong cong
hanh trinh » canh tranh, hanh chinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
trinh van » trinh han, trinh quan, trinh toan
tai cao » thai cao, tao cao, tai cac
tai sao » tai san

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 trinh van ((thuong cong) OR (thuong dong)) san ((tai cao) or (tai sao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh trinh van ((thuong cong) OR (thuong dong)) san ((tai cao) OR (tai sao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh trinh van ((thuong cong) OR (thuong dong)) san ((tai cao) or (tai sao))".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh trinh van ((thuong cong) OR (thuong dong)) san ((tai cao) or (tai sao))*.