Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
hien sang » hien trang, khien bang, chieu sang
truong va » truong dai, truong cao, truong dao
chong van » thong van, hong van, phong van
trung va » trang va, trung ha, trung tam
van can » van canh, van ban, ban can
can ban » van ban, toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien sang - thanh ((trung va) or (truong va)) nhung chong van can ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sang - thanh ((trung va) OR (truong va)) nhung chong van can ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien sang - thanh ((trung va) or (truong va)) nhung chong van can ban*.