Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
hanh trinh » canh tranh, hanh chinh
quang dung » quang trung, ung dung, cuong dung
quan dung » quan duong, qua dung, quan dong
cong tap » cuong tap, cong tac, cong tan
tap doan » tap quan
doan cap » doanh cao, dan ca, toan cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (chinh sach)) - hanh trinh ((quan dung) OR (quang dung)) cong tap doan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chinh sach)) - hanh trinh ((quan dung) OR (quang dung)) cong tap doan cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) or (chinh sach)) - hanh trinh ((quan dung) OR (quang dung)) cong tap doan cap*".