Perhaps you should try some spelling variations:
nhan khoa » nha khoa, khuan khoa, toan khoa
hach hoc » cach hoc, mach hoc, hoach hoi
hoc nhan » hoc nhanh, nhoc nhan, hoc phan
khoa hoc » hoa hoc
van nhan » van phan, van thanh, danh nhan
tu hach » tu hanh, tu cach, tu sach
va nhan » ca nhan, va phan, va nha
mo hoc » mon hoc, co hoc
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: tu hach hoc tap, nghien cuu mo hoc nhan khoa hoc xa hoi ((va nhan) OR (van nhan)) va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu hach hoc tap, nghien cuu mo hoc nhan khoa hoc xa hoi ((va nhan) OR (van nhan)) va".
• Adding a wildcard symbol may retrieve word variants: tu hach hoc tap, nghien cuu mo hoc nhan khoa hoc xa hoi ((va nhan) OR (van nhan)) va*.