Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tren » sach tien, sach tranh
khoa phan » hoa phan, khoa than, khoa phau
phan cung » phan cong, phan ung, phan xuong
hay trinh » hanh trinh, may tinh, lap trinh
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
cung hay » cong hay, cung may, chung han

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 kinh) or (sach tren)) hoc chuyen đe ky thuat: kien thuc anh khoa phan cung hay trinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kinh) OR (sach tren)) hoc chuyen đe ky thuat: kien thuc anh khoa phan cung hay trinh.
• Adding a wildcard symbol may retrieve word variants: tu ((sach kinh) or (sach tren)) hoc chuyen đe ky thuat: kien thuc anh khoa phan cung hay trinh*.