Perhaps you should try some spelling variations:
quang dung » quang trung, ung dung, cuong dung
tieu sach » chieu sach, dien sach, te sach
cua trung » cua truong, xuan trung, cua nhung
doanh cao » doanh co, doanh bao, doanh cho
anh tang » anh bang, anh dang, anh nang
cong tac » cong ty
doan cap » dan ca, toan cao, doan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - anh tang ((cua trung) or (quang dung)) cong tac ((doan cap) OR (doanh cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - anh tang ((cua trung) OR (quang dung)) cong tac ((doan cap) OR (doanh cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - anh tang ((cua trung) or (quang dung)) cong tac ((doan cap) OR (doanh cao))".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - anh tang ((cua trung) or (quang dung)) cong tac ((doan cap) OR (doanh cao))*.