Perhaps you should try some spelling variations:
khong cong » khong cang, chong cong, khong con
hang doanh » hanh doanh, nhung doanh, van doanh
thong cong » trong cong, tong cong, thong thong
theo hieu » theo chieu, theo tieu, thien hieu
hieu quan » hieu qua, lieu quan, thien quan
doanh cua » doanh luan
van han » van hanh, van phan, van nhan
han tap » han tai, toan tap, nhan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu quan - hang doanh cua ((khong cong) or (thong cong)) van han tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu quan - hang doanh cua ((khong cong) OR (thong cong)) van han tap.
• Adding a wildcard symbol may retrieve word variants: theo hieu quan - hang doanh cua ((khong cong) or (thong cong)) van han tap*.