Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
tuong cua » truong cua, huong cua, luong cua
thong cua » thong quan, thong tu, huong cua
nong cong » cong cong, tong cong, nang cong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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 - thanh ((tuong cua) OR (thong cua)) nong cong dan than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - thanh ((tuong cua) OR (thong cua)) nong cong dan than ban".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh ((tuong cua) OR (thong cua)) nong cong dan than ban*.