Perhaps you should try some spelling variations:
nghiep lao » nghiep bao, nghiep lam, nghiep luan
ngan khoa » nganh khoa, nhan khoa, nhuan khoa
sach hoc » cach hoc, sach hoi, sach duoc
mach hoc » cach hoc, dich hoc, anh hoc
lao dong » ha dong, van dong
dong luc » nang luc
luc ngan » luc nganh, luc nhan, luat ngan
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
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach hoc) or (mach hoc)) tap, nghiep lao dong luc ngan khoa hoc xa hoi van phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hoc) OR (mach hoc)) tap, nghiep lao dong luc ngan khoa hoc xa hoi van phan van.
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoc) or (mach hoc)) tap, nghiep lao dong luc ngan khoa hoc xa hoi van phan van*.