Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua nhung » va nhung
toan phan » thanh phan, toan ban, hoa phan
ho chieu » theo chieu, hoc thieu, doi chieu
tinh cua » trinh cua, sinh cua, tinh chat
tan phan » than phan, van phan, tai phan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh tinh cua nhung cong ((tan phan) or (toan phan)) dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tinh cua nhung cong ((tan phan) OR (toan phan)) dau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tinh cua nhung cong ((tan phan) or (toan phan)) dau*.