Perhaps you should try some spelling variations:
luat chong » luat chung, luat thong, luat thuong
luat cong » thuat cong, luat chung, cua cong
khi xanh » khia canh, thi hanh, thi oanh
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
thi anh » thi hanh, thi thanh, thich anh

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) OR (thi anh)) - canh tranh ((luat chong) or (luat cong)) cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((khi xanh) OR (thi anh)) - canh tranh ((luat chong) OR (luat cong)) cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((khi xanh) OR (thi anh)) - canh tranh ((luat chong) or (luat cong)) cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((khi xanh) OR (thi anh)) - canh tranh ((luat chong) or (luat cong)) cong tac toan cau*.