Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
coc nganh » hoc nganh, cac nganh, chuc nganh
sach toi » sach doi, sach hoi, sach moi
cuu cong » cua cong, thu cong, cac cong
cong coc » cong cuoc, cong cac, cong co
khoa hoc » hoa hoc
phap van » pham van, phan van, phap han
su sach » so sach, vu sach
toi gap » toi tap, toi gian
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 toi gap, nghien cuu cong coc nganh khoa hoc xa ((hoi cua) OR (hoi chuc)) phap van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach toi gap, nghien cuu cong coc nganh khoa hoc xa ((hoi cua) OR (hoi chuc)) phap van".
• Adding a wildcard symbol may retrieve word variants: su sach toi gap, nghien cuu cong coc nganh khoa hoc xa ((hoi cua) OR (hoi chuc)) phap van*.