Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hoc chiet » hoc thiet, hoc nhiet, hoc hien
tranh cua » doanh cua, manh cua
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chiet tach - canh tranh cua ((nhung cong) or (thong cong)) van ((phan cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chiet tach - canh tranh cua ((nhung cong) OR (thong cong)) van ((phan cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: hoc chiet tach - canh tranh cua ((nhung cong) or (thong cong)) van ((phan cau) or (phan dau))*.