Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh xuan » trinh quan, trinh luan, trinh luat
trang cong » trong cong, trang vuong, dang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tran cong » tran hong, trien cong, tran hoang
van nhanh » van thanh, van hanh, van khanh
nhanh cau » nhanh cay, thanh chau, nhanh ha
hoc hieu » hoc thieu, hoc hien, doc hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hanh trinh xuan ((trang cong) or (tran cong)) van nhanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh trinh xuan ((trang cong) OR (tran cong)) van nhanh cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh trinh xuan ((trang cong) or (tran cong)) van nhanh cau*.