Perhaps you should try some spelling variations:
trung tuan » trung thanh, tran tuan, truong thanh
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
thanh tuan » thanh toan, thanh xuan, thanh thanh
hieu lang » chieu sang, hieu quang, nhieu tang
doc hieu » toc thieu, hoc thieu, hoc hien
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu lang - hanh ((trung tuan) or (trung tam)) nhung cong thanh tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu lang - hanh ((trung tuan) OR (trung tam)) nhung cong thanh tuan ban*.