Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
cong thanh » cong trinh, cong tan, truong thanh
dong thanh » truong thanh
doi chieu » doi chi, ho chieu, mot chieu
cua phung » cua phuong, cua nhung, cua chung
doc hieu » toc thieu, hoc thieu, hoc hien
dung cua » dung luan, dung cho
khan cap » khan ap, than cap, khoan cam

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 (doc hieu)) sach - thanh dung cua phung ((cong thanh) OR (dong thanh)) khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) sach - thanh dung cua phung ((cong thanh) OR (dong thanh)) khan cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (doc hieu)) sach - thanh dung cua phung ((cong thanh) OR (dong thanh)) khan cap*".