Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chieu sang, chieu xanh
dang nhanh » dang hanh, dang thanh, dang khanh
dap nhung » vap nhung, dap ung, cam nhung
cong dang » cong dong, cong dan, cong dung
nhanh cay » nhanh ha, nhanh bac, nhanh va

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 (chiet tach)) - thanh trung ((dap nhung) OR (va nhung)) cong dang nhanh cay~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chiet tach)) - thanh trung ((dap nhung) OR (va nhung)) cong dang nhanh cay.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chiet tach)) - thanh trung ((dap nhung) OR (va nhung)) cong dang nhanh cay".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chiet tach)) - thanh trung ((dap nhung) OR (va nhung)) cong dang nhanh cay*.