Perhaps you should try some spelling variations:
thieu sach » thien hach, hieu cach, theo sach
chieu sach » chinh sach, chiet tach, chieu sang
manh trung » manh tung, thanh trung, manh hung
thong cong » trong cong, tong cong, thong thong
trung hua » trung ha, trung hoa, trung cua
hua thong » hoa thong, hua khong, huu thong
ban thanh » ban hanh, ban hang
thanh lap » thanh san, phan lap, thanh hai
cong ban » cong bang, cong san, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu sach) OR (chieu sach)) - manh trung hua thong cong ban thanh lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sach) OR (chieu sach)) - manh trung hua thong cong ban thanh lap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sach) OR (chieu sach)) - manh trung hua thong cong ban thanh lap*.