Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
hanh dung » thanh dung, anh dung, hanh dong
luan tinh » quan tinh, luan kinh, luan sinh
tinh cong » trinh cong, tinh cuong, minh cong
cong toan » cong tan, cong hoan, cong tuan
toan van » tran van, toan ban, tan van
van chat » cao chat

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 (toc thieu)) sach - hanh dung luan tinh cong toan van chat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) sach - hanh dung luan tinh cong toan van chat*.