Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
hanh doanh » chinh doanh, doanh doanh, kinh doanh
hang doanh » nhung doanh, van doanh, dung doanh
dong phong » duong phong, dong phuong, dong thong
hieu lang » chieu sang, nhieu tang, hieu van
phong van » phung van, thong van, phong va
cua dong » chua dong, cua cong, cua dang
van tan » van tuan, van ban, van tai
tan tap » toan tap, han tap, tan tat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi ((hieu lang) or (hieu quang)) - ((hanh doanh) OR (hang doanh)) cua dong phong van tan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((hieu lang) OR (hieu quang)) - ((hanh doanh) OR (hang doanh)) cua dong phong van tan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi ((hieu lang) or (hieu quang)) - ((hanh doanh) OR (hang doanh)) cua dong phong van tan tap".
• Adding a wildcard symbol may retrieve word variants: hoi ((hieu lang) or (hieu quang)) - ((hanh doanh) OR (hang doanh)) cua dong phong van tan tap*.