Perhaps you should try some spelling variations:
doanh chung » doanh nhung, doanh thuong, doan hung
chieu quang » hieu quang, thieu quang, hieu quan
dung doanh » dung dan, dung dong
chung cong » nhung cong, chong cong, phung cong
chu quang » chat quang, vu quang
hanh dung » thanh dung, anh dung, hanh dong
cong tinh » cong trinh, cong vinh, long tinh
toan cau » toan cao, toan ban, toan tap

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 quang) OR (chu quang)) - hanh dung doanh chung cong tinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu quang) OR (chu quang)) - hanh dung doanh chung cong tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu quang) OR (chu quang)) - hanh dung doanh chung cong tinh toan cau*.