Perhaps you should try some spelling variations:
sinh truong » sinh trung, sinh trong, minh tuong
truong dieu » trong dieu, truong dien, truong tieu
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
duong cong » dung cong, luong cong, duong trong
tan khoan » toan khoan, tai khoan, tao khoang
cong tan » cong tac, cong san, cong thanh
khoan va » doan va, khoa ma, nhan va

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 sach) or (chieu tinh)) - sinh truong dieu duong cong tan khoan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu tinh)) - sinh truong dieu duong cong tan khoan va.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu tinh)) - sinh truong dieu duong cong tan khoan va*.