Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
dung cong » dung trong
cong nhat » cong nhan, cong ha, cong suat
nhat hanh » nhat ban, nhat minh
hanh phan » thanh phan, anh phan, hanh han
phan dat » phan dau, phan dai, phan day
dat dung » dan dung, vat dung, da dung
phan cap » phan lap, phan tap, phan cac

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 - phan dat dung cong nhat hanh phan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) sach - phan dat dung cong nhat hanh phan cap.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) sach - phan dat dung cong nhat hanh phan cap*.