Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tran » thanh trang, thanh tra, thanh tuan
thanh toan » thanh hoa, thanh san, tinh toan
tuan nhung » quan nhung, tuan hung, thuat nhung
phuong dan » phuong danh, phuong doan, phuong lan
ho chieu » theo chieu, hoc thieu, doi chieu
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 - ((thanh tran) OR (thanh toan)) tuan nhung ((phuong dan) or (huong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((thanh tran) OR (thanh toan)) tuan nhung ((phuong dan) OR (huong dan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((thanh tran) OR (thanh toan)) tuan nhung ((phuong dan) or (huong dan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((thanh tran) OR (thanh toan)) tuan nhung ((phuong dan) or (huong dan)) toan cau*.