Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
lieu tinh » trieu tinh, diep tinh, bien tinh
trung cap » truong cao, trung tam
dung cong » dung trong
doi lieu » duoc lieu, doi chieu, du lieu
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi lieu tinh - thanh ((trung tuan) or (trung cap)) dung cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi lieu tinh - thanh ((trung tuan) OR (trung cap)) dung cong dan chan cau.
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - thanh ((trung tuan) or (trung cap)) dung cong dan chan cau*.