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
tang dang » tang dan, dang dang, tang bang
tien hoc » tin hoc, tien hoa, dien hoc
dang tay » dang xay, dung tay, dan tay
tay tinh » may tinh, tay binh, thuy tinh
su sach » vu sach
so sach » so sanh, bo sach, co sach
bach ha » bac ha, bich ha, sach ha
ha tang » phap tang, cao tang, kho tang

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) or (so sach)) tien hoc chuyen đe ky thuat: trien thuoc bach ha tang dang tay tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) tien hoc chuyen đe ky thuat: trien thuoc bach ha tang dang tay tinh.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) tien hoc chuyen đe ky thuat: trien thuoc bach ha tang dang tay tinh*.