Perhaps you should try some spelling variations:
hoach hoi » hoc hoi, hoach ha, sach hoi
cach thoi » cac thoi, cach thuc, cach noi
danh nhan » doanh nhan, thanh nhan, benh nhan
hoc toan » hoc tan, hop toan, hoa toan
khoa hoc » hoa hoc
hoi danh » hop danh, hoi dan, hoc danh
nhan van » nhan dan, nhan va, phan van
mo hoc » mon hoc, co hoc
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((hoach hoi) or (cach thoi)) tap, nghien cuu mo hoc toan khoa hoc xa hoi danh nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((hoach hoi) OR (cach thoi)) tap, nghien cuu mo hoc toan khoa hoc xa hoi danh nhan van.
• Adding a wildcard symbol may retrieve word variants: vu ((hoach hoi) or (cach thoi)) tap, nghien cuu mo hoc toan khoa hoc xa hoi danh nhan van*.