Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
sach thoi » cach thoi, sach hoi, sach tham
luc nganh » luc ngan, chuc nganh, luat nganh
thoi tap » toi tap, hoc tap, thoi dai
cuu nang » chuc nang, cam nang, cuu van
khoa hoc » hoa hoc
nhan tai » hang tai, van tai, toan tai
su sach » so sach, vu sach
hoi van » hoi dan, hai van, hoi han
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: su sach thoi tap, nghien cuu nang luc nganh khoa hoc xa ((hoi van) OR (hoi va)) nhan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thoi tap, nghien cuu nang luc nganh khoa hoc xa ((hoi van) OR (hoi va)) nhan tai".
• Adding a wildcard symbol may retrieve word variants: su sach thoi tap, nghien cuu nang luc nganh khoa hoc xa ((hoi van) OR (hoi va)) nhan tai*.