Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, ho chieu
anh quang » anh xquang, nhanh quang, tinh quang
tuan hung » tran hung, luan hung, tuan dung
hung cong » nhung cong, hung cuong, phung cong
anh quan » anh tuan, ban quan, anh nhan
cong tap » cuong tap, cong tac, cong tan
tap doan » tap quan
doan cau » toan cau, doan dau, doan cap

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