Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hoang xanh » hoang anh, hoang van, hoang minh
nang luong » nang song
hieu manh » chieu xanh, hieu nganh, dieu hanh
doan phan » doanh phan, toan phan, doanh nhan
xanh cua » manh cua, hanh cua, anh cua
cua nang » chua nang, cua dang, cua hang
dan phan » dan chan, van phan, dam phan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sach)) - hoang xanh cua nang luong ((dan phan) OR (doan phan)) lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sach)) - hoang xanh cua nang luong ((dan phan) OR (doan phan)) lap~".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sach)) - hoang xanh cua nang luong ((dan phan) OR (doan phan)) lap*.