Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
kien thuoc » kien thuc, bien thuoc, trien thuoc
thuoc sach » hoc sach, nuoc sach, thuoc sinh
sach khoa » bach khoa, sach nha, anh khoa
khoa kham » kho khan, khoa than
kham cung » kham xung, tham cung, pham cong
cung may » dung may, cong may, cung hay
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: thuat sach ((tin hoc) OR (sinh hoc)) chuyen đe ky thuat: kien thuoc sach khoa kham cung may tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((tin hoc) OR (sinh hoc)) chuyen đe ky thuat: kien thuoc sach khoa kham cung may tinh".
• Adding a wildcard symbol may retrieve word variants: thuat sach ((tin hoc) OR (sinh hoc)) chuyen đe ky thuat: kien thuoc sach khoa kham cung may tinh*.