Perhaps you should try some spelling variations:
dong thuong » cong thuong, dong thong, dung thuong
hanh trinh » canh tranh, hanh chinh
thieu xanh » chieu xanh, hieu manh, thien anh
trinh quan » tinh quang, trinh luat, trinh han
thuong van » thong van, truong van, thuong va
tien manh » tien anh, tien thanh, tieng anh
quan dong » quang dong, quan long, quan hoang
van toan » van tuan, van tan, van thanh
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 ((thieu xanh) or (tien manh)) - hanh trinh quan dong thuong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (tien manh)) - hanh trinh quan dong thuong van toan cao*.