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
trung va » truong va, trang va, trung ha
cong tap » cuong tap, cong tac, cong tan
tong tap » tuong tac, trong tan, cong tac
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 trung va nhung ((((cong tap) or (tong tap))) or (cong ty)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung va nhung ((((cong tap) OR (tong tap))) OR (cong ty)) toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung va nhung ((((cong tap) or (tong tap))) or (cong ty)) toan cao*.