Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, nhieu tang
nhung cong » dung cong, thong cong, hang cong
hieu lang » hieu quang, nhieu tang, biet lang
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
hieu van » hieu va, thien van, lieu va
trung va » truong va, trang va, trung ha
toan cao » toan ban, toan tap

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) or (hieu van)))) - thanh trung va nhung cong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (((hieu lang) OR (hieu van)))) - thanh trung va nhung cong manh toan cao.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (((hieu lang) or (hieu van)))) - thanh trung va nhung cong manh toan cao*.