Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tien » sach tren, sach thieu
thuc cach » thuoc sach, truoc cach, thuc hanh
phan cung » phan cong, phan ung, phan xuong
tien hoc » tin hoc, tien hoa, dien hoc
cach hoa » cach hoan, cach hoc, bach hoa
hoa phan » hoa dan, co phan
hay dinh » tham dinh, phan dinh, pham dinh
vu sach » vu bach, su sach, vu khach
ha dinh » ha tinh, va dinh, ba dinh

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

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