Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu lang » chieu sang, hieu quang, nhieu tang
trung van » truong van, trong van, trung tuan
hang cong » dang cong, hang nong, bang cong
trung va » truong va, trang va, trung ha
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cao » chan cho, chat cao, chay cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu tinh) or (hieu lang)) - thanh ((trung van) OR (trung va)) hang cong dan chan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (hieu lang)) - thanh ((trung van) OR (trung va)) hang cong dan chan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu tinh) or (hieu lang)) - thanh ((trung van) OR (trung va)) hang cong dan chan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (hieu lang)) - thanh ((trung van) OR (trung va)) hang cong dan chan cao*.