Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh hung » thanh huong, thanh tung, thanh trung
nang luong » nang song
doanh phan » doanh nhan, doan phan, doanh thanh
hoc chieu » hoc thieu, ho chieu, hoc hien
hung dat » dung dat, vung dat, hung dao
dat nang » da nang, dat hang, dai nang
dan phan » doan phan, dan chan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - thanh hung dat nang luong ((dan phan) or (doanh phan)) lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - thanh hung dat nang luong ((dan phan) OR (doanh phan)) lap*.