Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
trinh toan » tinh toan, thanh toan, trinh han
toan nhung » toan chung, toan khung, doanh nhung
nhung cong » dung cong, thong cong, hang cong
chau tinh » ha tinh, cua tinh, cac tinh
cong tan » cong tac, cong san, cong thanh
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: ho ((chieu sach) or (((chau tinh) OR (cuu tinh)))) - hanh trinh toan nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (((chau tinh) OR (cuu tinh)))) - hanh trinh toan nhung cong tan toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (((chau tinh) OR (cuu tinh)))) - hanh trinh toan nhung cong tan toan cau*".