Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
hanh doanh » hang doanh, chinh doanh, kinh doanh
nhung cong » dung cong, thong cong, hang cong
hoc dien » hoc hien, hoc dieu, hoc lien
hoc vien » hoc hien, hoc viet, hoc tieng
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc dien) or (hoc vien)) anh - ((hanh doanh) or (doanh doanh)) va nhung cong tan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dien) OR (hoc vien)) anh - ((hanh doanh) OR (doanh doanh)) va nhung cong tan phan dau.
• Adding a wildcard symbol may retrieve word variants: ((hoc dien) or (hoc vien)) anh - ((hanh doanh) or (doanh doanh)) va nhung cong tan phan dau*.