Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
truoc cach » thuc cach, truoc cang
sach tren » sach tien, sach tranh
khoa phan » hoa phan, khoa than, khoa phau
phan dung » phan ung, phan dang, chan dung
hai trinh » hanh trinh, thai thinh, lap trinh
tren hoc » truyen hoc, trung hoc, triet hoc
dung hai » dung tai, dung ha, dung sai
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 ((truoc cach) OR (cuoc cach)) khoa phan dung hai trinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tren hoc chuyen đe ky thuat: kien ((truoc cach) OR (cuoc cach)) khoa phan dung hai trinh".
• Adding a wildcard symbol may retrieve word variants: te sach tren hoc chuyen đe ky thuat: kien ((truoc cach) OR (cuoc cach)) khoa phan dung hai trinh*.