Perhaps you should try some spelling variations:
tien trinh » tien thinh, bien tinh, tien thanh
hang doanh » hanh doanh, nhung doanh, dung doanh
van doanh » toan doanh, van dong, van thanh
hoc tien » hoc tieng, hoc hien, hoc vien
ban cong » bang cong, van cong, phan cong
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc tien trinh - ((hang doanh) OR (van doanh)) cua ban cong ((dan than) or (anh tuan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tien trinh - ((hang doanh) OR (van doanh)) cua ban cong ((dan than) OR (anh tuan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc tien trinh - ((hang doanh) OR (van doanh)) cua ban cong ((dan than) or (anh tuan)) tap".
• Adding a wildcard symbol may retrieve word variants: hoc tien trinh - ((hang doanh) OR (van doanh)) cua ban cong ((dan than) or (anh tuan)) tap*.