Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
hoc nganh » hoc nhanh
khong hoc » khung hoc, thong hoc, khong thuoc
van thanh » ban thanh, van tuan
su sach » so sach
vu sach » vu bach, vu khach
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
hoc mai » hoc ma, hoc dai, hoc bai
mai hoi » mai khoi, dai hoi, lai hoi
hoi van » hoi va, hoi dan, hai van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (vu sach)) hoc tap, nghien cuu mot hoc nganh khong hoc mai hoi van thanh san~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) hoc tap, nghien cuu mot hoc nganh khong hoc mai hoi van thanh san".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) hoc tap, nghien cuu mot hoc nganh khong hoc mai hoi van thanh san*.