Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
ho chieu » theo chieu, hoc thieu, doi chieu
dap dung » dan dung, dap ung, cap dung
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
ap dung » xay dung, van dung
hang ca » hang va, nang cao, hang tai

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 trung ((dap dung) OR (ap dung)) ((cong ban) or (cong san)) hang ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung ((dap dung) OR (ap dung)) ((cong ban) OR (cong san)) hang ca*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh trung ((dap dung) OR (ap dung)) ((cong ban) or (cong san)) hang ca*".