Perhaps you should try some spelling variations:
tien trinh » tien thinh, tien thanh, viet trinh
nhung cong » dung cong, thong cong, hang cong
bien tinh » bi tinh, yen tinh, diep tinh
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tien trinh) OR (bien tinh)) - canh tranh va nhung cong dan phan cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tien trinh) OR (bien tinh)) - canh tranh va nhung cong dan phan cac".
• Adding a wildcard symbol may retrieve word variants: theo ((tien trinh) OR (bien tinh)) - canh tranh va nhung cong dan phan cac*.