Perhaps you should try some spelling variations:
thanh chong » thanh chuong, thanh cong, nhanh chong
chong tham » hong tham, chong phap, cong thai
hien sach » dien sach, thien hach, chieu sach
kien sach » dien sach, vien bach, kien mac
tham dung » pham dung, tham cung, tham nhung
dung cong » dung trong
cong ban » cong bang, cong san, cong tan
ban phan » ban phap, van phan, ban than
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien sach) OR (kien sach)) - thanh chong tham dung cong ban phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien sach) OR (kien sach)) - thanh chong tham dung cong ban phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien sach) OR (kien sach)) - thanh chong tham dung cong ban phan cau*.