Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, hieu lang, nhieu tang
hieu quang » thieu quang, hieu quan, hieu qua
chieu xanh » chieu sach, chieu tinh, hieu manh
nhung cong » dung cong, thong cong, hang cong
trung va » truong va, trang va, trung ha
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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