Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, nhieu tang
cap thuong » chap thuong, ca thuong, cao thuong
hieu lang » hieu quang, nhieu tang, hieu van
trung cap » truong cao, trung tam
thuc van » thuc vat, thuc dan, thuc va
van chat » cao chat
van van » van ban, tan van, san van

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) or (hieu lang)) - thanh trung cap thuong thuc van van chat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - thanh trung cap thuong thuc van van chat*.