Perhaps you should try some spelling variations:
tranh luat » trinh luat, trinh luan, tranh cua
tranh luan » trinh luan, trinh luat, doanh luan
chong cong » cong cong, thong cong, cuong cong
khi xanh » khia canh, thi hanh, thi anh
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi xanh - canh ((tranh luat) OR (tranh luan)) chong cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi khi xanh - canh ((tranh luat) OR (tranh luan)) chong cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - canh ((tranh luat) OR (tranh luan)) chong cong tac toan cau*.