Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, dien thanh
tien thanh » tien thinh, tran thanh, den thanh
hanh trang » thanh trung, canh tranh, hanh trinh
dang trong » dung trong, dong trong, lang trong
trang cua » tranh cua, tang cua, trung cua
trong tap » trong thap, tong tap, trong tan
cua dang » cua cong, cua ban
tap doan » tap quan
doan cau » toan cau, doan dau, doan cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((hien nhanh) or (dieu hanh))) or (tien thanh)) - hanh trang cua dang trong tap doan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hien nhanh) OR (dieu hanh))) OR (tien thanh)) - hanh trang cua dang trong tap doan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((hien nhanh) or (dieu hanh))) or (tien thanh)) - hanh trang cua dang trong tap doan cau*.