Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
cong quang » luong quang, thong quang, duong quang
quang phan » quang chan, quang phat, quang thanh
cua nhung » va nhung
ho chiet » ho chieu, ho thiet, hoc thiet
phan cau » phan dau, phan cac, phan tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - ((thanh tung) or (thanh cong)) cua nhung cong quang phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - ((thanh tung) OR (thanh cong)) cua nhung cong quang phan cau.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - ((thanh tung) or (thanh cong)) cua nhung cong quang phan cau*.