Perhaps you should try some spelling variations:
phuong bang » phuong hoang, phuong giang, phuong quang
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
muong bang » cuong bang, muong sang, tuong bang
thanh cac » hanh cac, thanh bac, thanh ca
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua

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 - hanh ((tang cua) OR (mang cua)) nhung ((phuong bang) or (muong bang)) thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh ((tang cua) OR (mang cua)) nhung ((phuong bang) OR (muong bang)) thanh cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh ((tang cua) OR (mang cua)) nhung ((phuong bang) or (muong bang)) thanh cac".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ((tang cua) OR (mang cua)) nhung ((phuong bang) or (muong bang)) thanh cac*.