Perhaps you should try some spelling variations:
phong dinh » phuong dinh, phong tinh, phong binh
chu trach » chiu trach, chu thich, chu tich
van phong » van dong, hai phong
dinh toan » tinh toan, hinh toan, minh toan
theo chu » theo chieu, cho chu, chao chu
anh manh » lanh manh, anh anh, ranh mach
anh danh » anh anh, anh dang, anh dinh
toan cau » toan cao, toan ban, toan tap
cua van » cua ban, cua vat, cua dan

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 chu trach - ((anh manh) OR (anh danh)) cua van phong dinh toan cau~.
• Adding a wildcard symbol may retrieve word variants: theo chu trach - ((anh manh) or (anh danh)) cua van phong dinh toan cau*.