Perhaps you should try some spelling variations:
hien xanh » hien nhanh, chieu xanh, hien khanh
dung cong » dung trong
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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) or (((hien hanh) or (dieu hanh)))) - anh tang cua dung cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (((hien hanh) OR (dieu hanh)))) - anh tang cua dung cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (((hien hanh) or (dieu hanh)))) - anh tang cua dung cong dan than cao*.