Perhaps you should try some spelling variations:
hanh truong » hanh trong, anh truong, manh truong
truong quan » trong quan, thong quan, luong quan
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
quan chong » quen chong, quang cuong, quang thong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (nhieu tang)) - hanh truong quan chong ((cong dan) OR (cong tan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (nhieu tang)) - hanh truong quan chong ((cong dan) OR (cong tan)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) or (nhieu tang)) - hanh truong quan chong ((cong dan) OR (cong tan)) toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (nhieu tang)) - hanh truong quan chong ((cong dan) OR (cong tan)) toan tap*.