Perhaps you should try some spelling variations:
than duong » thanh duong, tuan duong, thao duong
hoc chuyen » khong chuyen
khoa than » khoa luan, hoa thai, hoa tan
duong may » duong ma, dung may, duong mat
thu sach » thuat sach, thuoc sach, thu hoach
tren hoc » truyen hoc, trung hoc, triet hoc
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
tu sach » su sach, te sach, tu cach
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) OR (thu sach)) tren hoc chuyen đe ky thuat: kien thuc anh khoa than duong may tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) tren hoc chuyen đe ky thuat: kien thuc anh khoa than duong may tinh".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) tren hoc chuyen đe ky thuat: kien thuc anh khoa than duong may tinh*.