Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhanh cong » nhanh chong, nganh cong, nhanh dong
nhung cong » dung cong, thong cong, hang cong
cho nhung » cho chuong, cua nhung, thi nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong van » cong vang, cong san, song van
tan cao » toan cao, tay cao, tan ca
tao cao » bao cao, toan cao

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 - ((nhanh cong) OR (thanh cong)) cho nhung cong van ((tan cao) OR (tao cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((nhanh cong) OR (thanh cong)) cho nhung cong van ((tan cao) or (tao cao))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((nhanh cong) OR (thanh cong)) cho nhung cong van ((tan cao) or (tao cao))*.