Perhaps you should try some spelling variations:
thieu quang » thien quan, trien quang, hieu quan
hieu quang » hieu quan, hieu qua, diep quang
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh chua » doanh cua, doanh chu, doanh chung
chua bang » chu bang, chua nang, chua xang
bang cong » dang cong, bang song, hang cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu quang) or (thieu quang)) - hanh doanh chua bang cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu quang) OR (thieu quang)) - hanh doanh chua bang cong manh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu quang) or (thieu quang)) - hanh doanh chua bang cong manh toan ban*.