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
cua trong » cua truong, cua trung, qua trong
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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 xanh - hanh tranh cua trong cong dan ((than cau) OR (than cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh tranh cua trong cong dan ((than cau) OR (than cap))".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tranh cua trong cong dan ((than cau) OR (than cap))*.