Perhaps you should try some spelling variations:
vien thanh » viet thanh, tien thanh, dien thanh
hanh trinh » canh tranh, hanh chinh
hong xuong » khong xuong, hong vuong, hong cuong
xuong manh » duong manh, luong manh, xuong banh
trinh thi » trinh tai, dinh thi, trinh tu
manh toan » thanh toan, anh tuan, tinh toan
thi hong » thi cong, thi phuong, thi hanh
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 ((vien nganh) or (vien thanh)) - hanh trinh thi hong xuong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((vien nganh) OR (vien thanh)) - hanh trinh thi hong xuong manh toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((vien nganh) or (vien thanh)) - hanh trinh thi hong xuong manh toan cao*.