Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhieu tang » nhiet nang
chieu sang » chieu sach, chieu xanh
nhung cong » dung cong, thong cong, hang cong
hieu lang » hieu quang, hieu van, biet lang
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
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: toc ((hieu lang) or (((nhieu tang) OR (chieu sang)))) - thanh trung cua nhung cong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((hieu lang) OR (((nhieu tang) OR (chieu sang)))) - thanh trung cua nhung cong van tuan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((hieu lang) or (((nhieu tang) OR (chieu sang)))) - thanh trung cua nhung cong van tuan ban*".