Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
trung van » truong van, trong van, trung va
hoan cong » hoang cong, hoa cong, doan cuong
toan cong » tran cong, toan thong, doan cuong
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, 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: doi chieu sach - thanh trung van ((hoan cong) or (toan cong)) dan ((than cap) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh trung van ((hoan cong) OR (toan cong)) dan ((than cap) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh trung van ((hoan cong) or (toan cong)) dan ((than cap) or (khan cap))*.