Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cong quang » luong quang, thong quang, duong quang
doi chieu » doc hieu, doi chi, ho chieu
manh tung » manh hung, thanh tung
dap nhung » vap nhung, va nhung, dap ung
tung dap » tung dan, trung dai, tuong dan
cong san » cong tac
tuan cau » toan cau, quan cau, tuan cu
toan tap » toan ban

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 - manh tung dap nhung ((cong san) or (cong quang)) ((tuan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - manh tung dap nhung ((cong san) OR (cong quang)) ((tuan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - manh tung dap nhung ((cong san) or (cong quang)) ((tuan cau) or (toan tap))*.