Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
hoc dieu » hoc thieu, hoc hien
ho chieu » theo chieu, hoc thieu, doi chieu
van toan » van tuan, van tan, van thanh

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) or (ho chieu)) tinh - canh tranh cua nhung cong ((van toan) or (manh toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (ho chieu)) tinh - canh tranh cua nhung cong ((van toan) OR (manh toan)) ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (ho chieu)) tinh - canh tranh cua nhung cong ((van toan) or (manh toan)) ban*.