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
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
tong cong » trong cong, cong cong, dang cong
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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 ((dung cong) or (tong cong)) tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh trung tuan ((dung cong) OR (tong cong)) tan toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh trung tuan ((dung cong) or (tong cong)) tan toan tap*.