Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
thieu sang » chieu sang, thieu khang, thieu quang
hanh doanh » hang doanh, doanh doanh, kinh doanh
luan chung » luan chinh
chung cong » nhung cong, chong cong, phung cong
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: toc thieu sang - ((hanh doanh) or (chinh doanh)) luan chung cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sang - ((hanh doanh) OR (chinh doanh)) luan chung cong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: toc thieu sang - ((hanh doanh) or (chinh doanh)) luan chung cong tinh toan cau*.