Perhaps you should try some spelling variations:
trung thanh » truong thanh
thieu sang » chieu sang, thieu khang, thieu quang
trung tuan » trung tam, tran tuan, truong thanh
phung cong » phong cong, nhung chong, dung cong
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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 thanh) or (trung tuan)) ((phung cong) OR (nhung cong)) dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh ((trung thanh) OR (trung tuan)) ((phung cong) OR (nhung cong)) dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - thanh ((trung thanh) or (trung tuan)) ((phung cong) OR (nhung cong)) dan than cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh ((trung thanh) or (trung tuan)) ((phung cong) OR (nhung cong)) dan than cau*.