Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » truong cua, trung cap, dung cua
hoc hieu » hoc thieu, hoc hien, doc hieu
cong anh » cong danh, dong anh, hong anh
anh quan » anh tuan, ban quan, anh nhan
quan ban » quang ban, qua ban, quan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu lang - hanh ((trung cua) OR (trung tuan)) nhung cong anh quan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu lang - hanh ((trung cua) OR (trung tuan)) nhung cong anh quan ban".
• Adding a wildcard symbol may retrieve word variants: hoc hieu lang - hanh ((trung cua) OR (trung tuan)) nhung cong anh quan ban*.