Perhaps you should try some spelling variations:
trong chuan » thong chuan, trong chan, trong chuong
trong thuan » trong thuat, trong tuan, trong thuong
chieu sang » chieu sach, chieu xanh, hieu lang
cong vang » cong lang, cong quang, cong ngang
ho chieu » theo chieu, hoc thieu, doi chieu
cong van » cong san, song van, cong tan
phan cac » nhan cach, phan dau, phan lap

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 - hanh ((trong chuan) or (trong thuan)) bang ((cong van) OR (cong vang)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh ((trong chuan) OR (trong thuan)) bang ((cong van) OR (cong vang)) phan cac*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - hanh ((trong chuan) or (trong thuan)) bang ((cong van) OR (cong vang)) phan cac*".