Perhaps you should try some spelling variations:
thuong dong » phuong dong, tuong dong, chuong dong
luat thuong » suat thong
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc hien
dong tac » cong tac, dong tai, dong bac
toan cau » toan ban, toan tap, toan tai
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: hoc chieu xanh - ((hanh trinh) or (canh tranh)) luat thuong dong tac ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - ((hanh trinh) OR (canh tranh)) luat thuong dong tac ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - ((hanh trinh) or (canh tranh)) luat thuong dong tac ((toan cau) or (toan cao))*.