Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
thanh van » thanh san, thanh toan, thanh phan
sach hoc » cach hoc, sach hoi, mach hoc
hoc tapp » hoc tai, hoc lap, hoc tan
cong hoc » dong hoc, cong hoa, cong coc
phan van » pham van, luan van, tran van
su sach » so sach, vu sach
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
tap hai » tap bai, tap dai, tai hai
hai van » thai van, ha van, hai tan

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 hoc tapp, nghien cuu mot hoc nganh cong hoc tap hai van ((phan van) or (thanh van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoc tapp, nghien cuu mot hoc nganh cong hoc tap hai van ((phan van) OR (thanh van)).
• Adding a wildcard symbol may retrieve word variants: su sach hoc tapp, nghien cuu mot hoc nganh cong hoc tap hai van ((phan van) or (thanh van))*.