Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
manh cua » doanh cua, ban cua
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than
theo te » theo tu, theo tieu, theo yeu
te sach » toc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo te sach - canh manh cua nhung cong ((((dan toan) or (dan than))) or (tinh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo te sach - canh manh cua nhung cong ((((dan toan) OR (dan than))) OR (tinh toan)) tap.
• Adding a wildcard symbol may retrieve word variants: theo te sach - canh manh cua nhung cong ((((dan toan) or (dan than))) or (tinh toan)) tap*.