Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
hien tinh » khien tinh, thien tinh, bien tinh
tuan hung » luan hung, tuan dung, xuan hung
tran hung » tran hong, tran quang, tran hoang
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: hoc hien tinh - ((manh trung) or (canh tranh)) ((tuan hung) OR (tran hung)) cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien tinh - ((manh trung) OR (canh tranh)) ((tuan hung) OR (tran hung)) cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien tinh - ((manh trung) or (canh tranh)) ((tuan hung) OR (tran hung)) cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc hien tinh - ((manh trung) or (canh tranh)) ((tuan hung) OR (tran hung)) cong tac toan cau*.