Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
manh tuong » manh tung, manh cuong, minh tuong
tuong qua » tuong quan, duong qua, thong qua
qua trong » quan trong, qua trinh, qua song
cong danh » cuong danh, cong dan, cong thanh
toan tap » toan ban
toan cao » toan ban

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: doi ((chieu sang) OR (chieu sach)) - manh tuong qua trong cong danh ((toan tap) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sang) OR (chieu sach)) - manh tuong qua trong cong danh ((toan tap) or (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) OR (chieu sach)) - manh tuong qua trong cong danh ((toan tap) or (toan cao))*.