Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
hanh doanh » hang doanh, doanh doanh, kinh doanh
cong quang » luong quang, thong quang, duong quang
hieu xanh » chieu xanh, hieu manh, hieu nganh
cua trong » cua truong, cua trung, qua trong
cong lang » cong vang, cong luong, cong ngang
doc hieu » toc thieu, hoc thieu, hoc hien

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

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