Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
dung cong » dung trong
cong vang » cong lang, cong quang, cong ngang
cua dung » cua dang, cua dong, qua dung
vang van » dang van, tang van, lang van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (((chieu sach) or (chinh sach)))) - canh tranh cua dung cong vang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (((chieu sach) OR (chinh sach)))) - canh tranh cua dung cong vang van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (((chieu sach) or (chinh sach)))) - canh tranh cua dung cong vang van ban*.