Perhaps you should try some spelling variations:
dich khien » dich phien, dieu khien, dich dien
hoc chuyen » khong chuyen
thuat lanh » thuat lap
khien hoc » nhiet hoc, dien hoc
thuat san » thuat toan, thuat song, thuat xay
phan dang » phan dau, phan cong, nhan dan
hoa phan » hoa dan, co phan
dang may » mang may, dang xay, dung may
su dich » su tich, su dinh, chu dich
tinh » trinh, dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: su dich khien hoc chuyen đe ky thuat: thien ((thuat san) or (thuat lanh)) hoa phan dang may tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su dich khien hoc chuyen đe ky thuat: thien ((thuat san) OR (thuat lanh)) hoa phan dang may tinh.
• Adding a wildcard symbol may retrieve word variants: su dich khien hoc chuyen đe ky thuat: thien ((thuat san) or (thuat lanh)) hoa phan dang may tinh*.