Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
thanh van » thanh san, thanh toan, thanh phan
sach doi » sach hoi, sach moi, sach dao
khoa hoc » hoa hoc
phan van » pham van, luan van, tran van
te sach » toc sach
doi tai » hoi tai, dai tai, doi tac
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoc mai » hoc ma, hoc dai, hoc bai
mai hoi » mai khoi, dai hoi, lai hoi
hoi cau » hoi chu, hoc cau, hoa cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach doi tai, nghien cuu mon hoc nganh khoa hoc mai hoi cau ((phan van) OR (thanh van))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach doi tai, nghien cuu mon hoc nganh khoa hoc mai hoi cau ((phan van) OR (thanh van))".
• Adding a wildcard symbol may retrieve word variants: te sach doi tai, nghien cuu mon hoc nganh khoa hoc mai hoi cau ((phan van) OR (thanh van))*.