Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
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
tan toan » tan tran, tap toan, van toan
van tai » von tai, van tuan

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

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