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
tuan nhung » quan nhung, tuan hung, thuat nhung
hoc thieu » toc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh
toan ban » van ban
toan cao » toan tap

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