Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
gian lang » gian dan
mach hoc » cach hoc, dich hoc, anh hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
van gian » van giang, dan gian, van giao
tu mach » tu cach, tu manh, tu hach
hoi van » hoi va, hoi dan, hai van

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu mach hoc tap, nghien cuu dong hoc nganh ((khoa hoc) OR (hoa hoc)) xa hoi van gian lang~".
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cuu dong hoc nganh ((khoa hoc) OR (hoa hoc)) xa hoi van gian lang*.