Perhaps you should try some spelling variations:
truong cao » truong dai
thong cong » trong cong, tong cong, thong thong
cong doan » cong dan, cong hoan, dong doanh
doan phan » doanh phan, toan phan, dan phan
theo chu » theo chieu, cho chu, theo yeu
chao chu » cho chu, cua chu, cao cho
trung ca » trung cap, truong ca, trung cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (chao chu)) xanh - thanh ((trung ca) OR (truong cao)) thong cong doan phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) OR (chao chu)) xanh - thanh ((trung ca) or (truong cao)) thong cong doan phan tu~".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) OR (chao chu)) xanh - thanh ((trung ca) or (truong cao)) thong cong doan phan tu*.