Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
tong cong » trong cong, cong cong, dung cong
thanh lap » thanh san, phan lap, thanh hai
thanh cac » hanh cac, thanh bac, tranh cac
ho chieu » theo chieu, hoc thieu, doi chieu
trung va » truong va, trang va, trung ha
cong san » cong tac
thanh ca » thanh cha, thanh ha, thanh va
va tong » va thong, va tuong, va trong

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 va tong cong san ((thanh lap) or (((thanh ca) OR (thanh cac))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung va tong cong san ((thanh lap) OR (((thanh ca) OR (thanh cac)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh trung va tong cong san ((thanh lap) or (((thanh ca) OR (thanh cac))))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung va tong cong san ((thanh lap) or (((thanh ca) OR (thanh cac))))*.