Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sang » chieu sang, thieu khang, thieu quang
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
thanh tay » thanh tai, thanh toan, thanh san
thuy » thu, thuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - thanh trung tuan ((nhung cong) or (thong cong)) van ((thanh tay) or (thanh thuy))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh trung tuan ((nhung cong) OR (thong cong)) van ((thanh tay) OR (thanh thuy)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh trung tuan ((nhung cong) or (thong cong)) van ((thanh tay) or (thanh thuy))*.