Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh van » tran van, trinh van, thanh van
cong tinh » cong trinh, cong vinh, cong thanh
long tinh » trong tinh, luong tin, dong tin
chi xanh » chi anh, chi danh, chi hanh
van dung » van dong, xay dung, tin dung
doi chi » doi khi

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: "doi chi xanh - hanh tranh van dung ((cong tinh) OR (long tinh)) van ban~".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh tranh van dung ((cong tinh) OR (long tinh)) van ban*.