Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chiet tach » chieu sach
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
cong bai » cuong bai, cong hai, cung bai
tap cau » tap cac, tao cau, ta cau

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

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