Perhaps you should try some spelling variations:
hanh tang » hanh trang, hanh mang, hanh tung
dung cong » dung trong
tan trang » tan tran, ta trang, ban trang
trang cho » trong cho, trang o, sang cho
ho chieu » theo chieu, hoc thieu, doi chieu
anh tang » anh bang, anh dang, anh nang
cong tan » cong tac, cong san, cong thanh
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo tieu) or (ho chieu)) sach - ((hanh tang) OR (anh tang)) va dung cong tan trang cho~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (ho chieu)) sach - ((hanh tang) OR (anh tang)) va dung cong tan trang cho.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo tieu) or (ho chieu)) sach - ((hanh tang) OR (anh tang)) va dung cong tan trang cho".
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (ho chieu)) sach - ((hanh tang) OR (anh tang)) va dung cong tan trang cho*.