Perhaps you should try some spelling variations:
quan trong » gian trong
hanh tang » hanh trang, anh tang, hanh mang
qua trong » qua trinh, qua song, qua cong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh tang ((qua trong) OR (quan trong)) ((cong tan) OR (cong san)) van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - hanh tang ((qua trong) OR (quan trong)) ((cong tan) or (cong san)) van ban~".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh tang ((qua trong) OR (quan trong)) ((cong tan) or (cong san)) van ban*.