Perhaps you should try some spelling variations:
trong doanh » trong nganh
thieu sang » chieu sang, thieu khang, thieu quang
thanh tung » thanh cong
dong doanh » dung doanh, doanh doanh, dong thanh
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua khong, cua tong
tung cua » trung cua, tuong cua, dung cua
hanh tu » anh tu, danh tu
nhan su » nhan luc

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 tung cua thong ((dong doanh) OR (trong doanh)) ((hanh tu) or (nhan su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh tung cua thong ((dong doanh) OR (trong doanh)) ((hanh tu) OR (nhan su))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - thanh tung cua thong ((dong doanh) OR (trong doanh)) ((hanh tu) or (nhan su))*".