Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
thanh tung » thanh cong
sinh sach » chinh sach, sang sach, sinh danh
cua thong » cua thuong, cua khong, cua tong
sinh san » trinh san, sinh vat, sinh va
tung cua » trung cua, tuong cua, dung cua
cong tac » cong ty
tac pham » thuc pham, san pham
pham ca » pham can, pham ma, pham va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((sinh sach) or (sinh san)) - thanh tung cua thong cong tac pham ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((sinh sach) OR (sinh san)) - thanh tung cua thong cong tac pham ca.
• Adding a wildcard symbol may retrieve word variants: hoc ((sinh sach) or (sinh san)) - thanh tung cua thong cong tac pham ca*.