Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
trang quan » tang quan, trang tuan, trung quan
trong quan » thong quan, tong quan, thong quang
hang cong » dang cong, hang nong, bang cong
cong anh » cong danh, dong anh, hong anh
tuan cau » toan cau, quan cau, tuan cu

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) OR (chiet tach)) - hanh ((trang quan) or (trong quan)) hang cong anh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chiet tach)) - hanh ((trang quan) OR (trong quan)) hang cong anh tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) OR (chiet tach)) - hanh ((trang quan) or (trong quan)) hang cong anh tuan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) OR (chiet tach)) - hanh ((trang quan) or (trong quan)) hang cong anh tuan cau*.