Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
trung tuan » trung thanh, trung tam, tran tuan
cang thang » cong thanh, dang thanh
hoc thieu » toc thieu
trung cua » truong cua, trung cap, dung cua
cong cang » cong cong, cong lang, cong vang
thang cap » thong cap, than cap, trung cap

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: ((hoc thieu) OR (hoc hien)) sang - thanh ((trung cua) OR (trung tuan)) thuong cong cang thang cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) OR (hoc hien)) sang - thanh ((trung cua) or (trung tuan)) thuong cong cang thang cap~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) OR (hoc hien)) sang - thanh ((trung cua) or (trung tuan)) thuong cong cang thang cap*.