Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
cua thong » cua thuong, cua khong, cua tong
cua tinh » cua sinh, va tinh, ha tinh
mang cua » manh cua, dung cua, ban cua
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man
cach » cac, sach

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 (cua tinh)) - cach mang cua thong cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (cua tinh)) - cach mang cua thong cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (cua tinh)) - cach mang cua thong cong dan than ban*.