Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, chieu xanh
trang cua » tranh cua, tang cua, thang cua
trung cua » truong cua, trung tuan, trung cap
cong dan » cong san, cong tan, huong dan
dan canh » van canh, dan cach, dan hanh
canh ban » can ban, canh dan, canh van

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 ((trang cua) or (trung cua)) nhung cong dan canh ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((trang cua) OR (trung cua)) nhung cong dan canh ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((trang cua) or (trung cua)) nhung cong dan canh ban*.