Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
nhung luong » hung luong, nhung tuong, thuong luong
manh toan » thanh toan, anh tuan, tinh toan
doc hieu » toc thieu, hoc thieu, hoc hien
hieu luc » hieu luat, hieu qua
tranh va » tranh van, trang va, trinh va
toan cau » toan cao, toan ban, toan tap
canh » anh, can, hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu luc - canh tranh va ((nhung luong) OR (nhung huong)) manh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu luc - canh tranh va ((nhung luong) OR (nhung huong)) manh toan cau".
• Adding a wildcard symbol may retrieve word variants: doc hieu luc - canh tranh va ((nhung luong) OR (nhung huong)) manh toan cau*.