Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
nhung cong » dung cong, thong cong, nhung don
hoan thanh » hoang thanh, ban thanh, quan thanh
hang cong » dang cong, hang nong, bang cong
van thanh » ban thanh, van tuan
ho chieu » theo chieu, hoc thieu, doi chieu
tung cua » trung cua, tuong cua, dung cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh tung cua ((nhung cong) OR (hang cong)) ((hoan thanh) OR (van thanh)) lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh tung cua ((nhung cong) or (hang cong)) ((hoan thanh) OR (van thanh)) lap~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh tung cua ((nhung cong) or (hang cong)) ((hoan thanh) OR (van thanh)) lap*.