Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
cong thanh » dong thanh, cong trinh, cong tan
theo dieu » theo tieu, theo chieu, thuoc dieu
hanh tang » hanh trang, anh tang, hanh mang
va phuong » va thuong, cac phuong
toan cao » toan ban, toan tap
tang va » trang va, tang van, thang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo dieu hanh - hanh tang va phuong cong thanh ((van ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dieu hanh - hanh tang va phuong cong thanh ((van ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo dieu hanh - hanh tang va phuong cong thanh ((van ban) or (toan cao))*.