Perhaps you should try some spelling variations:
trien thuoc » trien thuc, trien thuong, tin thuoc
hoc chuyen » khong chuyen
sach tren » sach tien, sach tranh
tren hoc » truyen hoc, trung hoc, triet hoc
dan dang » dang dang, dan dung, da dang
dang may » mang may, dang xay, dung may
su sach » so sach, vu sach
bach ha » bac ha, sach ha, bach khoa
bich ha » bich nga
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 sach tren hoc chuyen đe ky thuat: trien thuoc ((bach ha) OR (bich ha)) dan dang may tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tren hoc chuyen đe ky thuat: trien thuoc ((bach ha) OR (bich ha)) dan dang may tinh".
• Adding a wildcard symbol may retrieve word variants: su sach tren hoc chuyen đe ky thuat: trien thuoc ((bach ha) OR (bich ha)) dan dang may tinh*.