Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
huong cao » luong cao, duong cao, huong cau
cao thong » cao thuong, tao thong, cao phong
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban
phan tap » phan lap, han tap, pha tap

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 - anh huong cao thong cong tan ((toan tap) or (phan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - anh huong cao thong cong tan ((toan tap) OR (phan tap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - anh huong cao thong cong tan ((toan tap) or (phan tap))*.