Perhaps you should try some spelling variations:
tranh nhung » trinh nhung, tranh hang, tran hung
quang tranh » quang thanh, quang tran, quang trach
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, mot chieu
anh quang » anh xquang, anh quan, nhanh quang
ho chieu » theo chieu, hoc thieu, mot chieu
cong tap » cuong tap, cong tac, cong tan
toan cau » toan cao, toan ban, toan tai
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) or (ho chieu)) sach - anh quang tranh nhung cong tap ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) sach - anh quang tranh nhung cong tap ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) sach - anh quang tranh nhung cong tap ((toan cau) or (toan tap))*.