Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, hoc hien, hoc dieu
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap
cong va » cong ha, cong tac, luong va
dong va » dung va, dong ha, luong va

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) OR (ho chieu)) sach - thanh ((cong va) or (dong va)) nhung cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (ho chieu)) sach - thanh ((cong va) OR (dong va)) nhung cong san than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (ho chieu)) sach - thanh ((cong va) or (dong va)) nhung cong san than cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (ho chieu)) sach - thanh ((cong va) or (dong va)) nhung cong san than cau*.