Perhaps you should try some spelling variations:
nhan khoa » nha khoa, khuan khoa, hang khoa
thu mach » thu sach, thuat mach, thu hoach
mach hoc » cach hoc, dich hoc, anh hoc
nhan van » nhan dan, nhan va, phan van
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va nhan » van nhan, ca nhan, va phan
hoc xa » hoc ma
toan » tran

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu mach hoc tap, nghien cuu mon hoc ((nhan khoa) OR (toan khoa)) hoc xa hoi va nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu mach hoc tap, nghien cuu mon hoc ((nhan khoa) OR (toan khoa)) hoc xa hoi va nhan van".
• Adding a wildcard symbol may retrieve word variants: thu mach hoc tap, nghien cuu mon hoc ((nhan khoa) OR (toan khoa)) hoc xa hoi va nhan van*.