Perhaps you should try some spelling variations:
sach trien » sach tien, sach tren, sach thieu
quy trinh » qua trinh, quy dinh
trien hoa » trien hoat, trien khoa, tien hoa
hoa huyen » hoi huyen, hoa truyen, hong huyen
phau cung » phan cung, phap cung, phan chung
kien phuc » kien thuc, bien phuc, thien phuc
pha cung » phan cung, phap cung, nha cung
phuc cac » phuc cam, phuc ca, phuc cham
cac khoa » cac khoan, cac khoi, dac khoa
tu sach » thu sach, su sach, te sach

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach trien hoa huyen đe ky thuat: kien phuc cac khoa ((phau cung) OR (pha cung)) quy trinh~".
• Adding a wildcard symbol may retrieve word variants: tu sach trien hoa huyen đe ky thuat: kien phuc cac khoa ((phau cung) OR (pha cung)) quy trinh*.