Perhaps you should try some spelling variations:
phuong tinh » phuong trinh, phuong binh, khuong tinh
chiet tach » chieu sach
chieu sang » chieu sach, chieu xanh, hieu lang
manh trung » manh tung, thanh trung, manh hung
trung cua » truong cua, trung tuan, trung cap
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.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chiet tach) or (chieu sang)) - manh trung cua bang phuong tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chiet tach) OR (chieu sang)) - manh trung cua bang phuong tinh toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chiet tach) or (chieu sang)) - manh trung cua bang phuong tinh toan cao*.