Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
hien hanh » dieu hanh
hieu lang » chieu sang, nhieu tang, hieu van
dung cong » dung trong
anh hang » anh hoang, anh hung, anh bang
hang cua » mang cua, hang ca, huong cua
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 cap » khan cap, thanh lap, thanh cac

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 hanh) or (((hieu lang) OR (hieu quang)))) - anh hang cua dung cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien hanh) OR (((hieu lang) OR (hieu quang)))) - anh hang cua dung cong dan than cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien hanh) or (((hieu lang) OR (hieu quang)))) - anh hang cua dung cong dan than cap*".