Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
luat nhung » luat chung, luat thuong, thuat nhung
nhung cong » dung cong, thong cong, hang cong
cong tan » cong tac, cong san, cong thanh
tan hang » tan khang, ban hang, van hang
hang dau » hang va, hang tai
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu qua - ((hanh trinh) OR (canh tranh)) luat nhung cong tan hang dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu qua - ((hanh trinh) OR (canh tranh)) luat nhung cong tan hang dau".
• Adding a wildcard symbol may retrieve word variants: ho hieu qua - ((hanh trinh) OR (canh tranh)) luat nhung cong tan hang dau*.