Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
toan nhung » toan chung, toan khung, doanh nhung
nhung cong » dung cong, thong cong, hang cong
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu sang - hanh tinh toan nhung cong tac toan ban~.
• Adding a wildcard symbol may retrieve word variants: toc thieu sang - hanh tinh toan nhung cong tac toan ban*.