Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, nhung don
thanh tran » thanh trang, thanh toan, thanh tra
trinh vat » trinh van, sinh vat, trinh han
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
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 - hanh ((trinh vat) or (trinh luat)) ((nhung cong) OR (hang cong)) thanh tran tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((trinh vat) OR (trinh luat)) ((nhung cong) OR (hang cong)) thanh tran tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((trinh vat) or (trinh luat)) ((nhung cong) OR (hang cong)) thanh tran tap".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((trinh vat) or (trinh luat)) ((nhung cong) OR (hang cong)) thanh tran tap*.