Perhaps you should try some spelling variations:
nhanh chong » thanh cong
mach hoc » cach hoc, dich hoc, anh hoc
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
nhan van » nhan dan, nhan va, phan van
te mach » ke mach, te sach, tim mach
va nhan » van nhan, ca nhan, va phan
va hoi » xa hoi, va hoc, va hoa
do va » do van, so va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te mach hoc tap, nghien cuu dong luc ((nhanh chong) or (khanh phong)) do va hoi va nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te mach hoc tap, nghien cuu dong luc ((nhanh chong) OR (khanh phong)) do va hoi va nhan van.
• Adding a wildcard symbol may retrieve word variants: te mach hoc tap, nghien cuu dong luc ((nhanh chong) or (khanh phong)) do va hoi va nhan van*.