Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
dung cong » dung trong
nhan cach » phan cac
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
hang dau » hang va
hang tai » hang va, dung tai

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 - canh tranh cua dung cong dan ((nhan cach) OR (((hang dau) OR (hang tai))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - canh tranh cua dung cong dan ((nhan cach) OR (((hang dau) OR (hang tai))))".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh tranh cua dung cong dan ((nhan cach) OR (((hang dau) OR (hang tai))))*.