Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
tran nang » tran dang, tran quang, tran hoang
dung cong » dung trong
cong vang » cong lang, cong quang, cong ngang
vang toan » van toan, dang toan, quang toan
tra nang » thi nang, kha nang, da nang
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)) - hanh ((tran nang) or (tra nang)) dung cong vang toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - hanh ((tran nang) OR (tra nang)) dung cong vang toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - hanh ((tran nang) or (tra nang)) dung cong vang toan ban*.