Perhaps you should try some spelling variations:
chinh quan » chinh quyen, chinh ngan, trinh quan
chieu sang » chieu sach, chieu xanh, nhieu tang
chinh luan » chinh ngan, trinh luan, binh luan
hieu lang » hieu quang, nhieu tang, hieu van
hang cong » dang cong, hang nong, bang cong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) OR (hieu lang)) - hanh ((chinh quan) or (chinh luan)) hang cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - hanh ((chinh quan) OR (chinh luan)) hang cong san toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (hieu lang)) - hanh ((chinh quan) or (chinh luan)) hang cong san toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (hieu lang)) - hanh ((chinh quan) or (chinh luan)) hang cong san toan tap*.