Perhaps you should try some spelling variations:
mach dinh » hoach dinh, xac dinh, mach dien
bai dich » mai dich, ban dich, dai dich
ton giao » toan giao, hoc giao, don gian
tu mach » tu cach, tu manh, tu hach
dinh du » dinh duc, dinh cu, dinh tu
so giao » so giai, hoc giao
dich du » dich vu, tich du, dich tu
tu bai » tu ban, tu bat, te bai

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu mach dinh du - so giao ) or ( tu bai dich du - ton giao ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu mach dinh du - so giao ) OR ( tu bai dich du - ton giao )).
• Adding a wildcard symbol may retrieve word variants: (( tu mach dinh du - so giao ) or ( tu bai dich du - ton giao ))*.