Perhaps you should try some spelling variations:
trong nang » trong ngang, trong nong, thong nang
hieu lang » chieu sang, hieu quang, nhieu tang
trung van » truong van, trung va, trung tuan
trong van » trong cac
nang hang » nang sang, hang hang, cang thang
ho hieu » ho chieu, hoi hieu, nho hieu
hang ca » hang va, nang cao, hang tai

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 lang - thanh ((trung van) or (trong van)) dung trong nang hang ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh ((trung van) OR (trong van)) dung trong nang hang ca*.