Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
trinh toan » thanh toan, trinh han, trinh quan
tuong va » truong va, thuong va, luong va
tung va » trung va, dung va, vung va

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 sang - thanh ((tung va) OR (tuong va)) nhung phuong ((trinh toan) OR (tinh toan)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sang - thanh ((tung va) OR (tuong va)) nhung phuong ((trinh toan) or (tinh toan)) ban~".
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - thanh ((tung va) OR (tuong va)) nhung phuong ((trinh toan) or (tinh toan)) ban*.