Perhaps you should try some spelling variations:
chiet tach » chieu sach
ho chiet » ho chieu, ho thiet, hoc thiet
tung cua » trung cua, tuong cua, tang cua
dung cua » dung luan, dung cho
cong tan » cong tac, cong san, cong thanh
tan can » toan can, tan van, ban can
can cau » van cau, ban cau, ca cau

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 ((tung cua) OR (dung cua)) trong cong tan can cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - thanh ((tung cua) OR (dung cua)) trong cong tan can cau".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh ((tung cua) OR (dung cua)) trong cong tan can cau*.