Perhaps you should try some spelling variations:
thuat nhung » thuat hung, thuat chung, thuat chuong
hanh trinh » hanh chinh
nhung cong » dung cong, thong cong, hang cong
thi chieu » thi chien, thi hieu, theo chieu
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
theo chu » theo chieu, cho chu, chao chu
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: ((theo chu) or (thi chieu)) sach - ((hanh trinh) OR (canh tranh)) thuat nhung cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (thi chieu)) sach - ((hanh trinh) OR (canh tranh)) thuat nhung cong manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) or (thi chieu)) sach - ((hanh trinh) OR (canh tranh)) thuat nhung cong manh toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (thi chieu)) sach - ((hanh trinh) OR (canh tranh)) thuat nhung cong manh toan cau*.