Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
nganh khoa » nganh hoa, nganh khong, doanh khoa
luc nganh » luc ngan, chuc nganh, luat nganh
mach hoc » dich hoc, anh hoc, bac hoc
cach hoc » cach thuc, cach thoi, dich hoc
cong luc » dong luc, cong suc, cong duc
khoa hoc » hoa hoc
van phan » van phong, van thanh, luan phan
phan van » pham van, thanh van, luan van
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) or (cach hoc)) tap, nghien cua cong luc nganh khoa hoc ma hoi van phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((mach hoc) OR (cach hoc)) tap, nghien cua cong luc nganh khoa hoc ma hoi van phan van.
• Adding a wildcard symbol may retrieve word variants: tu ((mach hoc) or (cach hoc)) tap, nghien cua cong luc nganh khoa hoc ma hoi van phan van*.