Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
hanh dung » anh dung, hanh dong, manh dung
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dang, cua dong, qua dung
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: ((theo chu) or (ho chieu)) sach - ((hanh dung) OR (thanh dung)) cua dung cong tan can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (ho chieu)) sach - ((hanh dung) OR (thanh dung)) cua dung cong tan can cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) or (ho chieu)) sach - ((hanh dung) OR (thanh dung)) cua dung cong tan can cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (ho chieu)) sach - ((hanh dung) OR (thanh dung)) cua dung cong tan can cau*.