Perhaps you should try some spelling variations:
cong quang » luong quang, thong quang, duong quang
hanh sinh » hanh tinh, hanh dinh, hinh sinh
dung cong » dung trong
chao chu » cho chu, cua chu, cao cho
chu bang » thu bang, chuc nang, chu quang
sinh cua » manh cua, dinh cuu, sinh va
cua dung » cua dang, cua dong, qua dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao chu bang - hanh sinh cua dung cong quang ((toan ban) OR (van ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao chu bang - hanh sinh cua dung cong quang ((toan ban) OR (van ban))".
• Adding a wildcard symbol may retrieve word variants: chao chu bang - hanh sinh cua dung cong quang ((toan ban) OR (van ban))*.