Perhaps you should try some spelling variations:
hoc thanh » hoc nhanh, hoan thanh, hoc phan
nhan dann » nhan dang, phan dang, nhac dan
minh han » minh hang, minh nhan, minh can
cuu long » cuu cong, cuu tong, cuu nang
long hoc » dong hoc, long soc, long thuoc
nhan dan » phan dau, gian dan, nhan tai
tu minh » thu minh, vu minh, thi minh
han tap » han tai, toan tap, nhan tai
cong co » dong co, cong cu, cong so
xua hoi » xa hoi, cua hoi, xua hai
co xua » co cua, bo xua, cao xuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu minh han tap, nghien cuu long hoc thanh cong co xua hoi va ((nhan dann) or (nhan dan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu minh han tap, nghien cuu long hoc thanh cong co xua hoi va ((nhan dann) OR (nhan dan)).
• Adding a wildcard symbol may retrieve word variants: tu minh han tap, nghien cuu long hoc thanh cong co xua hoi va ((nhan dann) or (nhan dan))*.