Perhaps you should try some spelling variations:
phuong tinh » phuong trinh, phuong binh, khuong tinh
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
manh hung » anh huong
hung cua » huong cua, chung cua, khung cua
cua bang » chua bang, cua ban, cua dang
toan cao » toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu xanh)) - manh hung cua bang phuong tinh toan cao~.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu xanh)) - manh hung cua bang phuong tinh toan cao*.