Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo dieu » theo tieu, theo chieu, thuoc dieu
nhan dang » nhan dan, phan dang
tran dang » tran quang, tran hoang, tranh hang
cua nhung » va nhung
anh dang » anh dong, anh dung, anh bang
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo dieu hanh - ((anh dang) or (((nhan dang) OR (tran dang)))) cua nhung cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dieu hanh - ((anh dang) OR (((nhan dang) OR (tran dang)))) cua nhung cong san toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo dieu hanh - ((anh dang) or (((nhan dang) OR (tran dang)))) cua nhung cong san toan cau".
• Adding a wildcard symbol may retrieve word variants: theo dieu hanh - ((anh dang) or (((nhan dang) OR (tran dang)))) cua nhung cong san toan cau*.