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
ban tran » ban trang, tan tran, ban than
tran xay » tra xay, tran day, trinh xay
cong sat » cong suat, cong san, cong hat
sat phan » sat nhan, vat phan, xuat phan
phan cau » phan dau, phan cac, phan tu

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 - ban tran xay dung cong sat phan cau~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - ban tran xay dung cong sat phan cau*.