Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » truong cua, trung cap, dung cua
cang hang » cang thang, hang hang, nang hang
doi hieu » doi chieu, doc hieu, doi hien
hang cau » hang dau, hang ca, nhung cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - manh ((trung cua) or (trung tuan)) ((nhung cong) or (thong cong)) cang hang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - manh ((trung cua) OR (trung tuan)) ((nhung cong) OR (thong cong)) cang hang cau.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - manh ((trung cua) or (trung tuan)) ((nhung cong) or (thong cong)) cang hang cau*.