Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » thong cong, hang cong, nhung don
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
van thanh » ban thanh, van tuan
tuong va » truong va, thuong va, luong va
van tan » van tuan, van ban, van tai

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