Perhaps you should try some spelling variations:
trong thuan » trong thuat, trong tuan, trong chuan
hanh trong » hanh trang, anh trong, hinh trong
chieu sang » chieu sach, chieu xanh, nhieu tang
thuan nang » thuat nang, luan nang, xuan nang
hieu lang » hieu quang, nhieu tang, hieu van
nang dong » nang song, lang dong, nang luong
dong phan » dung phan, cong phan, dong chan
thanh lap » phan lap, thanh hai, thanh van

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 trong thuan nang dong phan ((thanh lap) OR (thanh san))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - hanh trong thuan nang dong phan ((thanh lap) OR (thanh san)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (hieu lang)) - hanh trong thuan nang dong phan ((thanh lap) OR (thanh san))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - hanh trong thuan nang dong phan ((thanh lap) OR (thanh san))*.