Perhaps you should try some spelling variations:
nhung bong » nhung cong, nhung bang, nhung chong
hieu quang » thieu quang, hieu qua, diep quang
hieu quan » hieu qua, lieu quan, thien quan
hanh dung » thanh dung, anh dung, manh dung
hanh dong » anh dong, ha dong
bong van » song van, tong van, hong van
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu quang) or (hieu quan)) - ((hanh dung) OR (hanh dong)) va nhung bong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu quang) OR (hieu quan)) - ((hanh dung) OR (hanh dong)) va nhung bong van tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu quang) or (hieu quan)) - ((hanh dung) OR (hanh dong)) va nhung bong van tuan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu quang) or (hieu quan)) - ((hanh dung) OR (hanh dong)) va nhung bong van tuan ban*.