Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
chinh can » chinh ca, chinh ban, chinh cau
cua hang » cua dang, cua nhung, cua cong
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh tranh cua hang ((cong tan) OR (cong tac)) chinh can~".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tranh cua hang ((cong tan) OR (cong tac)) chinh can*.