Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach dien » mach dien, sach tien, dich dien
thuc bach » truc bach, thuc cach, thuoc sach
phan cung » phan cong, phan ung, phan xuong
dien hoc » dien hoa, khien hoc, tin hoc
bach hoa » bach khoa, bach ha, cach hoan
hoa phan » hoa dan, co phan
cung hay » cong hay, cung may, chung han
tu sach » thu sach, su sach, te sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach dien hoc chuyen đe ky thuat: kien thuc bach hoa phan cung hay ((tinh or kinh) or dinh)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach dien hoc chuyen đe ky thuat: kien thuc bach hoa phan cung hay ((tinh OR kinh) OR dinh).
• Adding a wildcard symbol may retrieve word variants: tu sach dien hoc chuyen đe ky thuat: kien thuc bach hoa phan cung hay ((tinh or kinh) or dinh)*.