Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tien » sach tren, sach thieu
sach tin » sach kinh, sach tren, sach han
kien thu » kien thuc, kieu thu, kiem thu
tan cung » tan cuong, tan dung, ban cung
cung may » dung may, cong may, cung hay
thu anh » thuy anh, thu canh, thu oanh
anh hoa » anh khoa, danh hoa, hanh hoa
hoa tan » hoa dan, hoa van, hoa tin
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 tin) or (sach tien)) hoc chuyen đe ky thuat: kien thu anh hoa tan cung may tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tin) OR (sach tien)) hoc chuyen đe ky thuat: kien thu anh hoa tan cung may tinh.
• Adding a wildcard symbol may retrieve word variants: tu ((sach tin) or (sach tien)) hoc chuyen đe ky thuat: kien thu anh hoa tan cung may tinh*.