Perhaps you should try some spelling variations:
chiet tach » chieu sach
thong manh » thong minh, thong mang, thong danh
trung hoc » trung quoc
manh toan » thanh toan, anh tuan, tinh toan
ho chiet » ho chieu, ho thiet, hoc thiet
trung va » truong va, trang va, trung ha
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - thanh ((trung va) or (trung hoc)) thong thong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - thanh ((trung va) OR (trung hoc)) thong thong manh toan ban.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh ((trung va) or (trung hoc)) thong thong manh toan ban*.