Perhaps you should try some spelling variations:
nghiep thuoc » nghiem thuoc, nghiep thuc, nghiep theo
thuoc cong » truoc cong, thuoc trong, thu cong
khoan khoa » khuan khoa, khoa khoa, toan khoa
coc khoan » cac khoan, hoc khoa, con khoa
hanh hoc » thanh hoc, hinh hoc, anh hoc
cong coc » cong cuoc, cong cac, cong co
khoa hoc » hoa hoc
nhan van » nhan dan, nhan va, nha van
phan van » pham van, thanh van, luan van
tu hanh » du hanh, lu hanh, thuc hanh
hoc dai » hoc dan
dai moi » doi moi, dai hoi
moi van » mai van, moi va, doi van

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu hanh hoc tap, nghiep thuoc cong coc khoan khoa hoc dai moi van ((nhan van) or (phan van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu hanh hoc tap, nghiep thuoc cong coc khoan khoa hoc dai moi van ((nhan van) OR (phan van)).
• Adding a wildcard symbol may retrieve word variants: tu hanh hoc tap, nghiep thuoc cong coc khoan khoa hoc dai moi van ((nhan van) or (phan van))*.