Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
cong tinh » cong trinh, cong vinh, cong thanh
long tinh » trong tinh, luong tin, dong tin
van tuan » van ban, anh tuan
van quan » van ban
toan cau » toan cao, toan ban, toan tap

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