Perhaps you should try some spelling variations:
sach trien » sach tien, sach tren, sach thieu
quy trinh » qua trinh, quy dinh
khoa phau » khoa kham, khoa than, khoa thu
trien hoa » trien hoat, trien khoa, tien hoa
hoa huyen » hoi huyen, hoa truyen, hong huyen
kien phuc » kien thuc, bien phuc, thien phuc
cung quy » cong quy, dung quy, nhung quy
hoa phan » hoa dan, co phan
phuc cac » phuc cam, phuc ca, phuc cham
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 trien hoa huyen đe ky thuat: kien phuc cac ((khoa phau) OR (hoa phan)) cung quy trinh~.
• 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) OR (hoa phan)) cung quy trinh".
• Adding a wildcard symbol may retrieve word variants: tu sach trien hoa huyen đe ky thuat: kien phuc cac ((khoa phau) OR (hoa phan)) cung quy trinh*.