Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
luc nganh » luc ngan, chuc nganh, luat nganh
kon cach » kon mach, dong cach, loi cach
cach hoc » cach thuc, cach thoi, dich hoc
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
thuoc va » thuc va, thuoc ma, thuong va
nhan dan » phan dau, gian dan, nhan tai
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: kon cach hoc tap, nghien cuu dong luc nganh khong ((thuoc va) or (hoc ma)) hoi ca nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: kon cach hoc tap, nghien cuu dong luc nganh khong ((thuoc va) OR (hoc ma)) hoi ca nhan dan.
• Adding a wildcard symbol may retrieve word variants: kon cach hoc tap, nghien cuu dong luc nganh khong ((thuoc va) or (hoc ma)) hoi ca nhan dan*.