Perhaps you should try some spelling variations:
trien quang » tran quang, tuyen quang, dien quang
hieu quang » thieu quang, hieu quan, hieu qua
dung cong » dung trong
manh cua » doanh cua
cong san » cong tac
san phan » san pham, van phan, sat phan
phan cac » nhan cach, phan dau, phan lap
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu quang) or (trien quang)) - canh ((manh cua) or (ban cua)) dung cong san phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu quang) OR (trien quang)) - canh ((manh cua) OR (ban cua)) dung cong san phan cac.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu quang) or (trien quang)) - canh ((manh cua) or (ban cua)) dung cong san phan cac*.