Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
manh truong » manh trung, manh tuong, anh truong
chieu sang » chieu sach, chieu xanh, nhieu tang
thanh dung » thanh duong, thanh tung, thanh hung
hieu lang » hieu quang, nhieu tang, hieu van
dung cong » dung trong
cong tac » cong ty
doan van » doan va, hoang van, tran van
luan » quan, lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: mot ((chieu sang) or (hieu lang)) - manh truong thanh dung cong tac ((doan van) OR (luan van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot ((chieu sang) OR (hieu lang)) - manh truong thanh dung cong tac ((doan van) OR (luan van)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "mot ((chieu sang) or (hieu lang)) - manh truong thanh dung cong tac ((doan van) OR (luan van))".
• Adding a wildcard symbol may retrieve word variants: mot ((chieu sang) or (hieu lang)) - manh truong thanh dung cong tac ((doan van) OR (luan van))*.