Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
thuat lanh » thuat lap, thuat san
sach tren » sach tien, sach tranh
thuat anh » thuat canh, thuat nganh, thuat thanh
khoa pham » khoa kham, khoa phau, khoa cham
pham cong » phan cong
tren hoc » truyen hoc, trung hoc, triet hoc
cong may » cong xay, cong ma, cong hay
may minh » may tinh, mai minh, van minh
te sach » toc sach

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 lanh)) khoa pham cong may minh~.
• 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 lanh)) khoa pham cong may minh.
• Adding a wildcard symbol may retrieve word variants: te sach tren hoc chuyen đe ky thuat: kien ((thuat anh) or (thuat lanh)) khoa pham cong may minh*.