Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
nganh khong » nganh cong, nganh nong, nganh khoa
cach hoc » cach thuc, cach thoi, dich hoc
cuu toan » cuu hoan, cua toan, huu toan
toan hoc » toan khoa, van hoc, hoa hoc
thuoc xa » thuoc ma, thuoc va, thuoc la
phan dau » phan tu, hang dau
vu cach » va cach, ve cach, vu bach
va phan » van phan, va phat, va phap

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu cach hoc tap, nghien cuu toan hoc ((nganh khong) OR (nhanh chong)) thuoc xa hoi va phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu cach hoc tap, nghien cuu toan hoc ((nganh khong) OR (nhanh chong)) thuoc xa hoi va phan dau".
• Adding a wildcard symbol may retrieve word variants: vu cach hoc tap, nghien cuu toan hoc ((nganh khong) OR (nhanh chong)) thuoc xa hoi va phan dau*.