Perhaps you should try some spelling variations:
nhanh chong » thanh cong
hoc thanh » hoc nhanh, hoan thanh, hoc phan
hach hoc » cach hoc, mach hoc, hoach hoi
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
tu hach » tu hanh, tu cach, tu sach
san dan » sanh dan, shan dan, ban dan
hoc xa » hoc ma
xa hoc » xa hoi, va hoc, xa hoa

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 dong luc ((nhanh chong) or (khanh phong)) hoc xa hoc thanh san dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu hach hoc tap, nghien cuu dong luc ((nhanh chong) OR (khanh phong)) hoc xa hoc thanh san dan.
• Adding a wildcard symbol may retrieve word variants: tu hach hoc tap, nghien cuu dong luc ((nhanh chong) or (khanh phong)) hoc xa hoc thanh san dan*.