Perhaps you should try some spelling variations:
nghien tach » nghiep cach, nghiep sach, nghiem sach
thanh trung » thanh tung
hoc nghien » hoc hien
trung tao » trung tam, trong tao, trung tai
tao nang » cao nang, tao bang, tai nang
song dan » song danh, song van, cong dan
dan phan » doan phan, dan chan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc nghien tach - thanh trung tao nang song dan phan tu~.
• Adding a wildcard symbol may retrieve word variants: hoc nghien tach - thanh trung tao nang song dan phan tu*.