Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
nhung cong » dung cong, thong cong, hang cong
hanh sinh » hanh tinh, hanh dinh, hinh sinh
vat nhung » va nhung, vap nhung, vai nhung
cong tan » cong tac, cong san, cong thanh
tran tap » toan tap, tran tan, tran tuan

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) or (chinh sach)) - hanh sinh vat nhung cong tan tran tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - hanh sinh vat nhung cong tan tran tap.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chinh sach)) - hanh sinh vat nhung cong tan tran tap*.