Perhaps you should try some spelling variations:
vien nganh » vien thanh
hanh trang » thanh trung, canh tranh, hanh trinh
cap thuong » chap thuong, ca thuong, cao thuong
hieu xanh » chieu xanh, hieu manh, hieu nganh
trang cap » trung cap, trong cap, tranh chap
dong danh » dong doanh, dong anh, dung danh
dong dan » duong dan, dong san, cong dan
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: doc ((hieu xanh) or (vien nganh)) - hanh trang cap thuong ((dong dan) or (dong danh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (vien nganh)) - hanh trang cap thuong ((dong dan) OR (dong danh)) toan cao.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (vien nganh)) - hanh trang cap thuong ((dong dan) or (dong danh)) toan cao*.