Perhaps you should try some spelling variations:
truong dong » trong dong, truong dang, tuong dong
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
cua truong » cua trung, xuan truong, cac truong
dong cong » duong cong, dung cong, dang cong
khoan cam » khoa cam, khoan va, phan cam
ho chieu » theo chieu, hoc thieu, doi chieu
tung cua » trung cua, tuong cua, dung cua
khan cap » khan ap, than cap, phan cac

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 - thanh tung cua truong dong cong ((khan cap) or (khoan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh tung cua truong dong cong ((khan cap) OR (khoan cam)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh tung cua truong dong cong ((khan cap) or (khoan cam))*.