Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
hieu manh » chieu xanh, hieu nganh, dieu hanh
luan hung » luan chung, lan hung, luan ung
trong tan » trong quan, trong cac, trong ca
toc hieu » toc thieu, doc hieu, hoc thieu
tong tap » tuong tac, cong tac, tong hop

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu manh - canh tranh luan hung ((tong tap) OR (trong tan)) nang cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc hieu manh - canh tranh luan hung ((tong tap) OR (trong tan)) nang cao*".