Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
nhung cong » dung cong, thong cong, hang cong
cong quang » luong quang, thong quang, duong quang
quang chat » quang chan, quang phat, quang cao
doi chieu » doc hieu, doi chi, ho chieu
truong va » truong dai, truong dao, luong va
chat cao » chat co, chat cho, chat bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - thanh ((truong va) OR (truong cao)) nhung cong quang chat cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh ((truong va) OR (truong cao)) nhung cong quang chat cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh ((truong va) OR (truong cao)) nhung cong quang chat cao*.