Perhaps you should try some spelling variations:
khuong tinh » chuong trinh, phuong trinh, phuong binh
chua khuong » chuc thuong, cua phuong, chu phuong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
manh trung » manh tung, thanh trung, manh hung
trung sua » truong sua, trung cua, trung tuan
toan tap » toan ban

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 - manh trung sua chua khuong tinh ((doanh tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - manh trung sua chua khuong tinh ((doanh tai) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - manh trung sua chua khuong tinh ((doanh tai) or (toan tap))*.