Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
thuc bach » truc bach, thuc cach, thuoc sach
xuong may » cuong ma, xuong nau, duong ma
kinh hoc » sinh hoc, hinh hoc, tinh hoc
hoa phan » co phan
tu sach » thu sach, su sach, te sach
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: tu sach kinh hoc chuyen đe ky thuat: kien thuc bach ((hoa phan) OR (hoa dan)) xuong may tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach kinh hoc chuyen đe ky thuat: kien thuc bach ((hoa phan) OR (hoa dan)) xuong may tinh".
• Adding a wildcard symbol may retrieve word variants: tu sach kinh hoc chuyen đe ky thuat: kien thuc bach ((hoa phan) OR (hoa dan)) xuong may tinh*.