Perhaps you should try some spelling variations:
hoc khanh » hoc nhanh, hoc thanh, hoc hanh
khanh hoa » thanh hoa, hang hoa
danh nhan » doanh nhan, thanh nhan, benh nhan
cac cong » cua cong
hoi danh » hop danh, hoi dan, hoc danh
nhan dan » phan dau, gian dan, nhan tai
bac hoc » bai hoc, bac ho
tu bac » tu ban, tu cac, tu bat
hoc xa » hoc ma
tinh » trinh, dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu bac hoc tap, nghien ((cuu tinh) or (cac cong)) hoc khanh hoa hoc xa hoi danh nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bac hoc tap, nghien ((cuu tinh) OR (cac cong)) hoc khanh hoa hoc xa hoi danh nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu bac hoc tap, nghien ((cuu tinh) or (cac cong)) hoc khanh hoa hoc xa hoi danh nhan dan*.