Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
trong tan » trong quan, trong cac, trong ca
trung co » trung bo, trong co, truong cao
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
co dung » co duong, cao dung, co dong

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 - thanh trung co dung trong tan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung co dung trong tan ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung co dung trong tan ((toan cau) or (toan ban))*.