Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
quang dung » quang trung, ung dung, cuong dung
hieu manh » chieu xanh, hieu nganh, dieu hanh
tan quang » tran quang, tang quang, than quang
cong tan » cong tac, cong san, cong thanh
dung van » duong van, dung va, dang van
van phan » van phong, van thanh, luan phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((chieu sach) or (hieu manh)) - thanh cong tan quang dung van phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((chieu sach) OR (hieu manh)) - thanh cong tan quang dung van phan tu*.