Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
trung va » truong va, trang va, trung ha
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap
phan lap » phan dau

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 sang) or (chiet tach)) - thanh trung va nhung cong dan ((than cau) or (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chiet tach)) - thanh trung va nhung cong dan ((than cau) OR (phan lap)).
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chiet tach)) - thanh trung va nhung cong dan ((than cau) or (phan lap))*.