Perhaps you should try some spelling variations:
hlang trong » hoang trong, khoang trong, hanh trong
chieu sang » chieu sach, chieu xanh, nhieu tang
lang trong » dung trong, cong trong, dong trong
thuan nang » thuat nang, luan nang, xuan nang
hieu lang » hieu quang, nhieu tang, hieu van
nang cong » nang song, dang cong, bang cong
ban thanh » ban hanh, ban hang
thanh lap » thanh san, phan lap, thanh hai
cong ban » cong bang, cong san, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (hieu lang)) - ((hlang trong) or (lang trong)) thuan nang cong ban thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - ((hlang trong) OR (lang trong)) thuan nang cong ban thanh lap.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - ((hlang trong) or (lang trong)) thuan nang cong ban thanh lap*.