Perhaps you should try some spelling variations:
chong thuoc » khong thuoc, cong thuc, hong phuoc
nhanh chong » thanh cong, khanh phong
hoc nhanh » hoc nganh, hoc phan
dan thanh » dang thanh, danh thanh, ban thanh
thanh van » thanh san, thanh toan, thanh phan
hach hoc » cach hoc, mach hoc, hoach hoi
tu hach » tu hanh, tu cach, tu sach
dai hoi » dai hoc, dai hai
dai moi » doi moi
mo hoc » mon hoc, co hoc

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 nhanh chong thuoc ((dai hoi) OR (dai moi)) dan thanh van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu hach hoc tap, nghien cuu mo hoc nhanh chong thuoc ((dai hoi) OR (dai moi)) dan thanh van".
• Adding a wildcard symbol may retrieve word variants: tu hach hoc tap, nghien cuu mo hoc nhanh chong thuoc ((dai hoi) OR (dai moi)) dan thanh van*.