Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
dong thong » thong thong, nong thon, thong thuong
dong thanh » truong thanh
phan dang » phan dau, phan cong, nhan dan
manh toan » thanh toan, anh tuan, tinh toan
dang cua » dung cua, dong cua, mang cua
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (chinh sach)) - phan dang cua ((dong thong) OR (dong thanh)) manh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chinh sach)) - phan dang cua ((dong thong) OR (dong thanh)) manh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chinh sach)) - phan dang cua ((dong thong) OR (dong thanh)) manh toan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chinh sach)) - phan dang cua ((dong thong) OR (dong thanh)) manh toan tap*.