Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
cach phoi » cach thoi, cach phong, cac thoi
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
phoi tai » hoi tai, phi tai, pham tai
thai van » thi van, thanh van, thai vung
nhan dan » phan dau, gian dan, nhan tai
su cach » su sach, tu cach, su cac
huu mot » cuu mot, huy mot, hieu mot
mot hoc » mon hoc, mo hoc, mot goc
hai van » ha van, hai tan, hao van
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 cach phoi tai, nghien huu mot hoc nganh hoa hoc xa ((hai van) OR (thai van)) nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cach phoi tai, nghien huu mot hoc nganh hoa hoc xa ((hai van) OR (thai van)) nhan dan".
• Adding a wildcard symbol may retrieve word variants: su cach phoi tai, nghien huu mot hoc nganh hoa hoc xa ((hai van) OR (thai van)) nhan dan*.