Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
thong cua » thong quan, thong tu, huong cua
tung cua » trung cua, tuong cua, dung cua
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu tinh) or (hieu lang)) - thanh ((tung cua) or (thong cua)) thong cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (hieu lang)) - thanh ((tung cua) OR (thong cua)) thong cong dan than cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (hieu lang)) - thanh ((tung cua) or (thong cua)) thong cong dan than cau*.