Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
trung cua » truong cua, trung cap, dung cua
thanh cha » thanh ha, thanh nha, thanh phan
cha tu » chai tu, chay tu, chua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc thieu) or (hoc hien)) xanh - thanh ((trung cua) OR (trung tuan)) nhung cong thanh cha tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (hoc hien)) xanh - thanh ((trung cua) OR (trung tuan)) nhung cong thanh cha tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc thieu) or (hoc hien)) xanh - thanh ((trung cua) OR (trung tuan)) nhung cong thanh cha tu".
• Adding a wildcard symbol may retrieve word variants: ((toc thieu) or (hoc hien)) xanh - thanh ((trung cua) OR (trung tuan)) nhung cong thanh cha tu*.