Perhaps you should try some spelling variations:
sach trien » sach tien, sach tren, sach thieu
trien hoi » trien moi, trien hoat, trien khai
hoi huyen » hoi truyen, hong huyen, thi huyen
kien phuc » kien thuc, bien phuc, thien phuc
phau dung » phan dung, phan ung, chan dung
pham dung » pham dang, pham dong, pham hung
quy trinh » qua trinh, quy dinh
phuc cac » phuc cam, phuc ca, phuc cham
cac khoi » cac thoi, cac khoan, cach thoi
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 hoi huyen đe ky thuat: kien phuc cac khoi ((phau dung) OR (pham dung)) quy trinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach trien hoi huyen đe ky thuat: kien phuc cac khoi ((phau dung) OR (pham dung)) quy trinh".
• Adding a wildcard symbol may retrieve word variants: tu sach trien hoi huyen đe ky thuat: kien phuc cac khoi ((phau dung) OR (pham dung)) quy trinh*.