Perhaps you should try some spelling variations:
kien thuat » kiem thuat, thien thuat, chien thuat
hoa truyen » co truyen
thuat sach » thuat lanh, thuat san
thieu hoa » tieu hoa, hieu hoa, theu hoa
sach khoa » bach khoa, sach nha, anh khoa
khoa thai » hoa thai, khoa than, khoa tai
vung may » vung tay, cung may, vung bay
dung may » dung va, dung tai, mang may
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 thieu hoa truyen đe ky thuat: kien thuat sach khoa thai ((vung may) or (dung may)) tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thieu hoa truyen đe ky thuat: kien thuat sach khoa thai ((vung may) OR (dung may)) tinh.
• Adding a wildcard symbol may retrieve word variants: tu sach thieu hoa truyen đe ky thuat: kien thuat sach khoa thai ((vung may) or (dung may)) tinh*.