Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
duong van » duong va, luong va, dang van
trong van » trong cac
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 chieu sach - canh tranh cua nhung ((duong van) or (trong van)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - canh tranh cua nhung ((duong van) OR (trong van)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - canh tranh cua nhung ((duong van) or (trong van)) toan cau*.