Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh tranh » canh tranh, hanh trang, lanh tranh
nhung tung » nhung tuong, nhung dung, nhung vung
thanh toan » thanh hoa, thanh san, tinh toan
manh toan » anh tuan, tinh toan
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - ((hanh tranh) or (hanh trinh)) va nhung tung ((manh toan) OR (thanh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - ((hanh tranh) OR (hanh trinh)) va nhung tung ((manh toan) OR (thanh toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu sach - ((hanh tranh) or (hanh trinh)) va nhung tung ((manh toan) OR (thanh toan)) cao".
• Adding a wildcard symbol may retrieve word variants: theo chu sach - ((hanh tranh) or (hanh trinh)) va nhung tung ((manh toan) OR (thanh toan)) cao*.