Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
hanh trinh » canh tranh, hanh chinh
trung cong » trong cong, trung uong, trang cong
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
tan toan » tan tran, tap toan, van 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 chieu) or (hoc thieu)) sach - hanh trinh cua ((trung cong) OR (truong cong)) tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc thieu)) sach - hanh trinh cua ((trung cong) OR (truong cong)) tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (hoc thieu)) sach - hanh trinh cua ((trung cong) OR (truong cong)) tan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc thieu)) sach - hanh trinh cua ((trung cong) OR (truong cong)) tan toan cau*.