Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
canh chong » manh cuong, anh thong, hanh cong
mach hoc » cach hoc, dich hoc, anh hoc
cuu nang » chuc nang, cam nang, cuu van
van phan » van phong, van thanh, luan phan
phan dan » phan dang, phan dau, nhan dan
tu mach » tu cach, tu manh, tu hach
hoi van » hoi va, hoi dan, hai van
ma hoi » mai hoi, xa hoi, ma 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 mach hoc tap, nghien cuu nang luc ((canh chong) or (nhanh chong)) hoc ma hoi van phan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu mach hoc tap, nghien cuu nang luc ((canh chong) OR (nhanh chong)) hoc ma hoi van phan dan.
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cuu nang luc ((canh chong) or (nhanh chong)) hoc ma hoi van phan dan*.