Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
cong cap » cung cap, cong cau, cong cac
cap dung » ap dung, cao dung, chan dung
van phan » van phong, van thanh, luan phan
van tuan » van quan, van ban, anh tuan

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