Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
bien tinh » bi tinh, yen tinh, diep tinh
lieu tinh » trieu tinh, diep tinh
trung cao » truong cao, trung cap, trung ca
trung co » trung bo, trong co, truong cao
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((bien tinh) or (lieu tinh)) - thanh ((trung cao) OR (trung co)) truong cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((bien tinh) OR (lieu tinh)) - thanh ((trung cao) OR (trung co)) truong cong dan phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((bien tinh) or (lieu tinh)) - thanh ((trung cao) OR (trung co)) truong cong dan phan cau*".