Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
hoc thien » hoc hien, hoc thieu, hoc tien
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tranh cua » doanh cua, manh cua
cua khong » hua khong, cua phuong, cua thuong
doan phan » doanh phan, toan phan, doanh nhan
dan phan » dan chan, van phan, dam phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thien) or (hoc thiet)) thanh - canh tranh cua khong cong ((doan phan) OR (dan phan)) cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thien) OR (hoc thiet)) thanh - canh tranh cua khong cong ((doan phan) OR (dan phan)) cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thien) or (hoc thiet)) thanh - canh tranh cua khong cong ((doan phan) OR (dan phan)) cac".
• Adding a wildcard symbol may retrieve word variants: ((hoc thien) or (hoc thiet)) thanh - canh tranh cua khong cong ((doan phan) OR (dan phan)) cac*.