Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, nhieu tang
tran thong » toan thong, tran trong, tran phong
thong manh » thong minh, thong mang, thong danh
hieu lang » hieu quang, nhieu tang, hieu van
tran hong » tran hoang, tran trong, tranh hang
manh toan » thanh toan, anh tuan, tinh toan
toan ban » van ban

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