Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh
nhieu tang » nhiet nang
thong cong » trong cong, tong cong, thong thong
hieu lang » hieu quang, hieu van, biet lang
trung cap » truong cao, trung tam
cap thong » cap tong, chap thuong, phap thong
cong luan » tong luan, cong tuan, dong luan
luan phan » luan van, luan hoan
phan cau » phan dau, phan cac, phan tu

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 (nhieu tang))) or (hieu lang)) - thanh trung cap thong cong luan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu sang) OR (nhieu tang))) OR (hieu lang)) - thanh trung cap thong cong luan phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((chieu sang) OR (nhieu tang))) or (hieu lang)) - thanh trung cap thong cong luan phan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu sang) OR (nhieu tang))) or (hieu lang)) - thanh trung cap thong cong luan phan cau*.