Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh toan
hanh hoc » thanh hoc, hinh hoc, anh hoc
khoa hoc » hoa hoc
nhan van » nhan dan, nhan va, phan van
tu hanh » du hanh, lu hanh, thuc hanh
hoc dai » hoc dan
moi van » mai van, doi van, moi ban
moi va » hoi va, mai va, moi ve

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, nghien thu cong hach toan khoa hoc dai ((moi van) or (moi va)) nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu hanh hoc tap, nghien thu cong hach toan khoa hoc dai ((moi van) OR (moi va)) nhan van.
• Adding a wildcard symbol may retrieve word variants: tu hanh hoc tap, nghien thu cong hach toan khoa hoc dai ((moi van) or (moi va)) nhan van*.