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
tan nhan » tran nhan, tao nhan, van nhan
su sach » vu sach
so sach » so sanh, bo sach, co sach
hai tan » hai van, hai quan
nhan va » nhan tai, nhan dan, nhan tao
mo hoc » mon hoc, co hoc
ma hai » ta hai, va hai, xa hai

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 (so sach)) hoc tap, nghien cuu mo hoc nganh khong hoc ma hai tan nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) hoc tap, nghien cuu mo hoc nganh khong hoc ma hai tan nhan va".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) hoc tap, nghien cuu mo hoc nganh khong hoc ma hai tan nhan va*.