Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
cong ngang » cong nhan, cong quang, cong lang
ngang than » nganh thanh, sang than, nang thanh
truong va » truong dai, truong cao, truong dao
ho chieu » theo chieu, hoc thieu, doi chieu
trung va » trang va, trung tam, trung cap
trung ha » trung hoc, trung tam, trung cap
than cau » toan cau, phan cau, than cap

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 ((((trung va) OR (truong va))) OR (trung ha)) nhung cong ngang than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((((trung va) OR (truong va))) or (trung ha)) nhung cong ngang than cau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((((trung va) OR (truong va))) or (trung ha)) nhung cong ngang than cau*.