Perhaps you should try some spelling variations:
trien thuoc » trien thuc, trien thuong, tin thuoc
hoc chuyen » khong chuyen
thuoc bach » thuoc sach, thuoc ban, truc bach
sach tren » sach tien, sach tranh
tren hoc » truyen hoc, trung hoc, triet hoc
bach hoa » bach khoa, bach ha, cach hoan
hoa phan » hoa dan, co phan
dung may » dung va, dung tai, dung mo
su sach » so sach, vu sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach tren hoc chuyen đe ky thuat: trien thuoc bach hoa phan ((dung may) OR (mang may)) trinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tren hoc chuyen đe ky thuat: trien thuoc bach hoa phan ((dung may) OR (mang may)) trinh".
• Adding a wildcard symbol may retrieve word variants: su sach tren hoc chuyen đe ky thuat: trien thuoc bach hoa phan ((dung may) OR (mang may)) trinh*.