Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
phau xuong » phan xuong, khac xuong, phap vuong
xuong doan » xuong dan, xuong hoan, phuong doan
sach tien » sach tren, sach thieu
thuc bach » thuc cach, thuoc sach, thuc hanh
khoa phau » hoa phan, khoa kham, khoa than
doan minh » doan hinh, doan tinh, hoang minh
tien hoc » tin hoc, tien hoa, dien hoc
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 tien hoc chuyen đe ky thuat: kien ((thuc bach) OR (truc bach)) khoa phau xuong doan minh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tien hoc chuyen đe ky thuat: kien ((thuc bach) OR (truc bach)) khoa phau xuong doan minh".
• Adding a wildcard symbol may retrieve word variants: tu sach tien hoc chuyen đe ky thuat: kien ((thuc bach) OR (truc bach)) khoa phau xuong doan minh*.