Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
trung phan » trung thanh, trung ha, dung phan
hieu lang » chieu sang, hieu quang, nhieu tang
phan nang » phap nang, phan dang, phan cang
nang dong » nang song, lang dong, nang luong
dong hoc » dong co, dong luc
toan cao » toan ban
toan tap » toan 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 ((hieu lang) or (chieu xanh)) - thanh trung phan nang dong hoc ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu xanh)) - thanh trung phan nang dong hoc ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu xanh)) - thanh trung phan nang dong hoc ((toan cao) or (toan tap))*.