Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhieu tang » hieu lang, nhiet nang
chieu sang » chieu sach, chieu xanh, hieu lang
trung cua » truong cua, trung tuan, trung cap
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((nhieu tang) or (chieu sang)) - thanh trung cua dung cong tan ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((nhieu tang) OR (chieu sang)) - thanh trung cua dung cong tan ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo ((nhieu tang) or (chieu sang)) - thanh trung cua dung cong tan ((toan tai) or (toan ban))*.