Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
trinh phan » trinh han, trinh quan, thanh phan
trung cua » truong cua, trung cap, dung cua
tong cong » trong cong, cong cong, dung cong
chao chu » cho chu, cua chu, cao cho
chu xanh » chu manh, chieu xanh, chua xang
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao chu xanh - thanh ((trung cua) or (trung tuan)) tong cong trinh phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao chu xanh - thanh ((trung cua) OR (trung tuan)) tong cong trinh phan dau*.