Perhaps you should try some spelling variations:
manh truong » manh trung, manh tuong, minh truong
chieu sach » chinh sach, chiet tach, chieu sang
anh truong » anh thuong, anh trong, tang truong
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
cao nhung » cho nhung, cam nhung, cao chung
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
toan ban » van 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 (hieu lang)) - ((manh truong) OR (anh truong)) cao nhung cong danh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (hieu lang)) - ((manh truong) OR (anh truong)) cao nhung cong danh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) or (hieu lang)) - ((manh truong) OR (anh truong)) cao nhung cong danh toan ban*".