Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
canh trinh » canh tranh, hanh trinh, canh tinh
cac phuong » cac truong
doi chieu » doc hieu, doi chi, ho chieu
va phuong » va thuong
cong anh » cong danh, dong anh, hong anh
anh luan » anh tuan, anh quan, anh xuan
luan ban » luan van, luan san, luan han

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 sang - canh trinh ((va phuong) OR (cac phuong)) cong anh luan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - canh trinh ((va phuong) OR (cac phuong)) cong anh luan ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - canh trinh ((va phuong) OR (cac phuong)) cong anh luan ban*.