Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
canh doanh » hanh doanh, chinh doanh, doanh doanh
hieu lang » chieu sang, nhieu tang, hieu van
dung dong » dung cong, vung dong, dung trong
doanh va » doan va, doanh tai, doanh cua
dong van » duong van, dang van, dong von
va dung » van dung, va duong, vat dung
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)) - canh doanh va dung dong van tan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi ((hieu lang) OR (hieu quang)) - canh doanh va dung dong van tan tap".
• Adding a wildcard symbol may retrieve word variants: hoi ((hieu lang) OR (hieu quang)) - canh doanh va dung dong van tan tap*.