Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
chieu sach » chinh sach, chiet tach, chieu sang
phuong dan » phuong danh, phuong doan, huong dan
chu bang » thu bang, chuc nang, chu quang
hanh han » hanh nhan, hanh phan, hanh san
van dung » van dong, xay dung, tin dung
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
han van » phan van, nhan van, hanh van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu bang) or (chieu sach)) - hanh han van dung phuong dan ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu bang) OR (chieu sach)) - hanh han van dung phuong dan ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: theo ((chu bang) or (chieu sach)) - hanh han van dung phuong dan ((toan cau) or (toan tap))*.