Perhaps you should try some spelling variations:
trong chuan » thong chuan, trong chan, trong thuan
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trong » hanh trang, anh trong, hinh trong
chuan nang » chua nang, chuan trang, chuc nang
dong thanh » truong thanh
nang dong » nang song, lang dong, nang luong
thanh tap » thanh tai, thanh tay, thanh tam
thanh lap » thanh san, phan lap, thanh hai
ho chieu » theo chieu, hoc thieu, mot chieu

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 nang dong thanh ((thanh tap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh trong chuan nang dong thanh ((thanh tap) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh trong chuan nang dong thanh ((thanh tap) or (thanh lap))*.