Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » canh tranh, hanh trinh, hanh trang
khanh toan » khanh thanh, khanh thuan, manh toan
thanh toan » thanh hoa, thanh san
dien sach » dien anh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
hoc dien » hoc hien, hoc vien, hoc dieu

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 sach - hanh tranh cua nhung cong ((khanh toan) or (((thanh toan) OR (tinh toan)))) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dien sach - hanh tranh cua nhung cong ((khanh toan) OR (((thanh toan) OR (tinh toan)))) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc dien sach - hanh tranh cua nhung cong ((khanh toan) or (((thanh toan) OR (tinh toan)))) cau".
• Adding a wildcard symbol may retrieve word variants: hoc dien sach - hanh tranh cua nhung cong ((khanh toan) or (((thanh toan) OR (tinh toan)))) cau*.