Perhaps you should try some spelling variations:
canh trinh » canh tranh, canh tinh, anh trinh
hanh trinh » canh tranh, hanh chinh
cuong dung » tuong duong, ung dung, thong dung
dung tinh » dang tinh, dung ninh, dung tin
ho nhieu » hop nhieu, he nhieu, hoc thieu
ho chieu » theo chieu, hoc thieu, doi chieu
va cuong » van cuong, va chuong, va cong
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: ((ho nhieu) OR (ho chieu)) tang - ((canh trinh) or (hanh trinh)) va cuong dung tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho nhieu) OR (ho chieu)) tang - ((canh trinh) OR (hanh trinh)) va cuong dung tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho nhieu) OR (ho chieu)) tang - ((canh trinh) or (hanh trinh)) va cuong dung tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho nhieu) OR (ho chieu)) tang - ((canh trinh) or (hanh trinh)) va cuong dung tinh toan cau*.