Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu xanh, hieu cach
chieu sang » chieu xanh, hieu lang, nhieu tang
duong dung » cuong dung, dung dung, duong dang
canh dinh » canh tinh, anh dinh, canh binh
dung cong » dung trong
cong luan » tong luan, cong tuan, dong luan
luan phan » luan van, luan hoan

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 (chiet tach))) or (chieu sang)) - canh dinh duong dung cong luan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((((chieu sach) OR (chiet tach))) OR (chieu sang)) - canh dinh duong dung cong luan phan tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((((chieu sach) OR (chiet tach))) or (chieu sang)) - canh dinh duong dung cong luan phan tu*".