Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » thong cong, hang cong, nhung don
trung cua » truong cua, trung tuan, trung cap
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
chan cap » than cap, cao cap, phan cac
khan cap » khan ap, than cap, khoan cam

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 trung cua ((nhung cong) or (dung cong)) dan ((chan cap) OR (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung cua ((nhung cong) OR (dung cong)) dan ((chan cap) OR (khan cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh trung cua ((nhung cong) or (dung cong)) dan ((chan cap) OR (khan cap))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung cua ((nhung cong) or (dung cong)) dan ((chan cap) OR (khan cap))*.