Perhaps you should try some spelling variations:
sach tren » sach tien, sach tranh
hoa huyen » hoi huyen, hoa truyen, hong huyen
kien nuoc » bien nuoc, gieng nuoc, bien duoc
nuoc sach » nguoi sach, hoc sach, cuoc cach
sach khoa » bach khoa, sach nha, anh khoa
phan cong » thanh cong
tren hoa » tien hoa, trien hoat, truyen hoa
phan ung » phan xuong
tu sach » thu sach, su sach, te sach
tinh » trinh, dinh, minh

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 tren hoa huyen đe ky thuat: kien nuoc sach khoa ((phan ung) or (phan cong)) may tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tren hoa huyen đe ky thuat: kien nuoc sach khoa ((phan ung) OR (phan cong)) may tinh.
• Adding a wildcard symbol may retrieve word variants: tu sach tren hoa huyen đe ky thuat: kien nuoc sach khoa ((phan ung) or (phan cong)) may tinh*.