Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
hanh phan » thanh phan, anh phan, hanh nhan
ho chieu » theo chieu, hoc thieu, doi chieu
hanh han » hanh nhan, hanh san, anh han
cong san » cong tac
san than » sang than, san thanh, ban than
than ma » than man, than va, khan ma

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 han) or (hanh phan)) va nhung cong san than ma~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((hanh han) OR (hanh phan)) va nhung cong san than ma.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh han) or (hanh phan)) va nhung cong san than ma*.