Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
phan xuong » phan cong
thuc bach » truc bach, thuc cach, thuoc sach
xuong hay » huong hay, xuong hat, xuong hoan
hay trinh » hanh trinh, may tinh, lap trinh
tien hoc » tin hoc, tien hoa, dien hoc
bach hoa » bach khoa, bach ha, cach hoan
hoa phan » hoa dan, co phan
bo sach » hoc sach
co sach » cuon sach, hoc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((bo sach) OR (co sach)) tien hoc chuyen đe ky thuat: kien thuc bach hoa phan xuong hay trinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bo sach) OR (co sach)) tien hoc chuyen đe ky thuat: kien thuc bach hoa phan xuong hay trinh".
• Adding a wildcard symbol may retrieve word variants: ((bo sach) OR (co sach)) tien hoc chuyen đe ky thuat: kien thuc bach hoa phan xuong hay trinh*.