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 toan » thanh toan, anh tuan, tinh toan
hoc dieu » hoc thieu, hoc hien
manh cua » doanh cua, ban cua
dan toan » van toan, dan than, xuan toan
dan chan » dan gian, dan ca, van chat

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

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