Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
dung cong » dung trong
tung cao » nung cao, truong cao, trung cap
cao dung » cao dang, cao dong, cao ung
cong san » cong tac
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu tinh) or (chieu sach)) - thanh tung cao dung cong san ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (chieu sach)) - thanh tung cao dung cong san ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (chieu sach)) - thanh tung cao dung cong san ((toan cau) or (toan ban))*.