Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
dang cuong » dang cong, tang cuong, quang cuong
hien hanh » dieu hanh
cuong tap » luong tap, cong tac, luong tai
thang va » trang va, thong va, thanh va
tap toan » tap doan, tap quan, bai 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 xanh) or (hien hanh)) - cang ((thang va) or (hang va)) dang cuong tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (hien hanh)) - cang ((thang va) OR (hang va)) dang cuong tap toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (hien hanh)) - cang ((thang va) or (hang va)) dang cuong tap toan ban*.