Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach hinh » sach kinh, sach danh, sach han
thuc bach » truc bach, thuoc sach, thuc hanh
thuc cach » thuoc sach, truoc cach, thuc hanh
phan cung » phan cong, phan ung, phan xuong
hinh hoc » sinh hoc, tin hoc, benh hoc
cung hay » cong hay, cung may, chung han
hay tinh » may tinh, ha tinh, huy tinh
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 hinh hoc chuyen đe ky thuat: kien ((thuc bach) or (thuc cach)) co phan cung hay tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hinh hoc chuyen đe ky thuat: kien ((thuc bach) OR (thuc cach)) co phan cung hay tinh.
• Adding a wildcard symbol may retrieve word variants: tu sach hinh hoc chuyen đe ky thuat: kien ((thuc bach) or (thuc cach)) co phan cung hay tinh*.