Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tren » sach tien, sach tranh
thuat anh » thuat lanh, thuat canh, thuat nganh
thuat lap » thuat lanh, thuat xay, thuat bai
khan cung » phan cung, phan chung, phan cong
tren hoc » truyen hoc, trung hoc, triet hoc
kho khan » khoa kham, khoa than
cung may » dung may, cong may, cung hay
te sach » toc 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: te sach tren hoc chuyen đe ky thuat: kien ((thuat anh) or (thuat lap)) kho khan cung may tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tren hoc chuyen đe ky thuat: kien ((thuat anh) OR (thuat lap)) kho khan cung may tinh.
• Adding a wildcard symbol may retrieve word variants: te sach tren hoc chuyen đe ky thuat: kien ((thuat anh) or (thuat lap)) kho khan cung may tinh*.