Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach sinh » sach kinh, sach danh, sach song
khoa than » khoa luan, hoa thai, hoa tan
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
may minh » may tinh, van minh, cao minh
mai minh » mai dinh, chi minh, van minh
te sach » toc sach
than ma » than man, than va, khan ma

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 sinh hoc chuyen đe ky thuat: kien thuc anh khoa than ma ((may minh) OR (mai minh))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach sinh hoc chuyen đe ky thuat: kien thuc anh khoa than ma ((may minh) OR (mai minh))".
• Adding a wildcard symbol may retrieve word variants: te sach sinh hoc chuyen đe ky thuat: kien thuc anh khoa than ma ((may minh) OR (mai minh))*.