Perhaps you should try some spelling variations:
khong hoang » khung hoang, thong hoang, khong hoan
hieu quang » thieu quang, hieu quan, hieu qua
chieu sach » chinh sach, chiet tach, chieu sang
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh hua » doanh cua, doanh ha, doanh khoa
hua khong » hoa khong, cua khong, hoac khong
hoang van » hang va
quang ban » quang binh, quang tuan, quang tran
quan ban » qua ban, quan van, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu quang) or (chieu sach)) - hanh doanh hua khong hoang van ((quan ban) OR (quang ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu quang) OR (chieu sach)) - hanh doanh hua khong hoang van ((quan ban) OR (quang ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu quang) or (chieu sach)) - hanh doanh hua khong hoang van ((quan ban) OR (quang ban))*".