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
trung dung » ung dung, trung uong, trinh dung
thong dung » thong cong, thong thuong
hoc thieu » toc thieu, hoc hien
tuan cu » tuan tu, quan cua, tuan thu

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