Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
tang cua » mang cua, hang cua, tang luan
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan 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 ((hieu manh) or (chieu sach)) - hanh ((tang cua) or (trung cua)) nhung cong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chieu sach)) - hanh ((tang cua) OR (trung cua)) nhung cong van toan cao.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (chieu sach)) - hanh ((tang cua) or (trung cua)) nhung cong van toan cao*.