Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
hanh tran » hanh trang, thanh tran, hanh tram
van trong » van truong, vang trong, ban trong
thanh cau » thanh chau, thanh mau, thanh ca
nhanh cau » nhanh cay, thanh chau, nhanh ha
tran van » luan van
cong san » cong tac

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 tran van trong cong san ((thanh cau) OR (nhanh cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh tran van trong cong san ((thanh cau) OR (nhanh cau))".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tran van trong cong san ((thanh cau) OR (nhanh cau))*.