Perhaps you should try some spelling variations:
nghien xuan » nghiem xuan, nhien xuan, nguyen xuan
thuoc cach » thuoc sach, thuc cach, truoc cach
toan hoang » tran hoang, tuan hoang, hoan hoang
doanh khoa » toan khoa
xanh khoa » anh khoa, nganh khoa, xanh khong
cach hoc » cach thuc, cach thoi, dich hoc
va nhan » van nhan, ca nhan, va phan
nhan va » nhan tai, nhan dan, nhan tao
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: thuoc cach hoc tap, nghien xuan toan hoang ((xanh khoa) OR (doanh khoa)) hoc xa hoi va nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc cach hoc tap, nghien xuan toan hoang ((xanh khoa) OR (doanh khoa)) hoc xa hoi va nhan va".
• Adding a wildcard symbol may retrieve word variants: thuoc cach hoc tap, nghien xuan toan hoang ((xanh khoa) OR (doanh khoa)) hoc xa hoi va nhan va*.